DOCSLIB.ORG

Public Health Risk of Arsenic Species in Chicken Tissues from Live

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Public Health Risk of Arsenic Species in Chicken Tissues from Live Supporting Information for Public Health Risk of Arsenic Species in Chicken Tissues from Live Poultry Markets of Guangdong Province, China Yuanan Hu1, Wenfeng Zhang2, Hefa Cheng3*, Shu Tao3 1 MOE Laboratory of Groundwater Circulation and Evolution School of Water Resources and Environment China University of Geosciences (Beijing) Beijing 100083, China 2 State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry, Chinese Academy of Sciences Guangzhou 510640, China 3 MOE Key Laboratory for Earth Surface Processes College of Urban and Environmental Sciences Peking University Beijing 100871, China Environmental Science & Technology Date: Feb. 19, 2017 Number of Pages: 27 Number of Tables: 8 Number of Figure: 1 S1 1. Determination of Total Arsenic Contents The contents of total arsenic in the commercial feed and chicken tissue samples were determined after total digestion. The samples (0.20 g) were first pre-digested in digestion vessels with TFM liners using a mixture of 5 mL of HNO3, 1 mL of H2O2, and 1 mL of triple distilled water for 6 h at room temperature. The vessels were then sealed and placed inside a MARS microwave digestion system (CEM, Matthews, NC, U.S.). The mixtures were digested by closed-vessel microwave-assisted digestion with the following program: heating to 120 °C in 10 min and holding at 120 °C for 5 min; heating to 180 °C in 6 min and holding at 180 °C for 6 min; and heating to 190 °C in 5 min and holding at 190 °C for 10 min. After cooling to room temperature, the vessels were opened and the solutions were transferred to PTFE tubes and concentrated to 0.5 mL on an electric heating plate. The residual solutions were then transferred quantitatively into polypropylene vials and diluted to 10 mL by 2% HNO3. The diluted solutions were passed through 0.22 µm cellulose acetate membrane filters, then the contents of arsenic were determined on a 7700 X inductively coupled plasma-mass spectrometer (ICP-MS, Agilent, Santa Clara, CA, U.S.). The chicken feed samples were also digested using similar procedures. Three certified reference materials (CRMs), including a lobster hepatopancreas (TORT-2) obtained from the National Research Council of Canada, a pig liver (GBW10051) and a chicken muscle (GBW10018) supplied by the Chinese Academy of Geological Sciences, were also used in this study. Procedural blanks, at least one of the three CRMs, and duplicates of the samples (10% of the load) were digested in each batch of samples for quality assurance and quality control (QA/QC) purposes. Comparison with the certified values of the CRMs indicates that the recovery rate for total arsenic was 101.0 ± 17.9%. S2 2. Determination of Major Arsenic Species The speciation of arsenic, or the chemical forms in which it occurs, in selected samples of chicken tissues and commercial feeds was determined using the method developed previously in our group.1 In brief, the major inorganic and organic arsenic species, including arsenobetaine (AsB), dimethylarsinic acid (DMA), monomethylarsonic acid (MMA), inorganic arsenic (i-As), p-arsanilic acid (p-ASA), and roxarsone (ROX), were extracted using microwave-assisted extraction (MAE). MAE was conducted with a MARS microwave system under the following conditions: 100 mg of tissue or feed sample, extracted by 5 mL of 22% v/v methanol, 90 mmol/L (NH4)2HPO4, and 0.07% v/v trifluoroacetic acid (TFA) at pH 10.0 (adjusted by ammonium hydroxide solution), ramping for 10 min to 71 oC, and holding for 11 min. After cooling, the extracts were transferred to 5 mL polypropylene tubes and centrifuged at 15,000 rpm for 10 min. The supernatants were filtered by 0.22 µm PTFE membrane filters, stored at 4 oC and analyzed within 48 h. The inorganic and organic arsenic species in solution samples were detected using a 7700X ICP-MS hyphenated with a 1200 High Performance Liquid Chromatography (HPLC, Agilent, Santa Clara, CA, U.S.). Arsenic species in the solution samples (injection volume: 40 µL) were separated on a PRP-X100 anion exchange chromatographic column (4.6×250 mm, 5 µm; Hamilton, Reno, NV, USA) with gradient elution. Two mobile phases with a combined flow rate of 1.0 mL/min were used for separation of the arsenic species: (A) triple-distilled water, and (B) a buffer solution of 50 mmol/L (NH4)2HPO4 with 0.1% v/v TFA and 0.2% v/v HNO3 at pH 6.0 (adjusted by dilute ammonium hydroxide solution). TFA was added in the mobile phase to improve chromatographic resolution and avoid salting-out of proteins in the column. For efficient separation of the various arsenic species, the following gradient program was run: 0–1 min, 100% phase A linearly decreased S3 to 80%; 1–4 min, 80% phase A; 4–5 min, 80% phase A linearly decreased to 0%; 5–20 min, 0% phase A; 20–21 min, 0% phase A linearly increased to 100%; 21–23 min, 100% A. Unidentified arsenic compounds were also extracted from the chicken tissue samples, and their chromatogram peaks were quantitated using the calibration curves of the arsenic species with the closest retention times. More details on instrumentation and elimination of analytical interferences can be found in our previous work.1,2 Due to lack of CRM for chicken tissue with the targeted arsenic species, five spiked chicken tissue samples were prepared by spiking with solution containing DMA, MMA, As(III), As(V), p-ASA, and ROX and used in-house as reference samples.1 The recovery rate for the sum of DMA, MMA, i-As, p-ASA, and ROX determined from extraction of the five spiked chicken tissue samples (total arsenic contents 4.1-6.9 mg/kg) was 104.0±13.8%. At least one spiked chicken tissue samples was extracted with each batch of the chicken tissue and feed samples (10% of them were duplicates). A mixed standard containing DMA, MMA, i-As, p-ASA, and ROX (~20 µg-As/L each) was also analyzed during each batch of analysis, and good reproducibility was observed (relative standard deviations for i-As, DMA, MMA, p-ASA, and ROX were 1.4, 1.1, 2.1, 6.5, and 6.1%, respectively). The limits of detection (LODs) of the speciation analysis method were 3.6 µg/kg for AsB (inferred from As(III)), 18 µg/kg for i-As, 12 µg/kg for DMA, 18 µg/kg for MMA, 31 µg/kg for p-ASA, and 72 µg/kg for ROX in tissue and feed samples (all on the basis of dry weight in term of As mass), respectively. 1 The moisture loss of fresh chicken tissue samples after freeze-drying was determined to be 74±4%. Accordingly, the LODs for arsenic species in the chicken tissues were 0.936 µg/kg for AsB, 4.68 µg/kg for i-As, 3.12 µg/kg for DMA, 4.68 µg/kg for MMA, 8.06 µg/kg for p-ASA, and 18.7 µg/kg for ROX in chicken tissues (wet weight, as As), respectively. S4 3. Tables Table S1. Details on chicken tissue samples collected on live poultry markets in Guangzhou and Lianzhou of Guangdong province, China. Sample Sampling Production Area Sampling location Tissue Chicken breed Note ID time location/producer 1 Guangzhou Live poultry market #1 2013.01.12 Liver Yellow-feathered broiler Unknown 2 Guangzhou Live poultry market #1 2013.01.24 Liver Yellow-feathered broiler Unknown 3 Guangzhou Live poultry market #1 2013.01.25 Liver Yellow-feathered broiler Unknown 4 Guangzhou Live poultry market #1 2013.01.26 Liver Yellow-feathered broiler Unknown 5 Guangzhou Live poultry market #1 2013.01.30 Liver Black-bone chicken Unknown S01 6 Guangzhou Live poultry market #1 2013.01.30 Heart Black-bone chicken Unknown S01 7 Guangzhou Live poultry market #1 2013.02.01 Liver Yellow-feathered broiler Unknown 8 Guangzhou Live poultry market #1 2013.02.01 Gizzard Yellow-feathered broiler Unknown 9 Guangzhou Live poultry market #1 2013.02.20 Liver Yellow-feathered broiler Unknown 10 Guangzhou Live poultry market #1 2013.02.20 Liver Yellow-feathered broiler Unknown 11 Guangzhou Live poultry market #1 2013.02.20 Liver Yellow-feathered broiler Unknown 12 Guangzhou Live poultry market #1 2013.02.20 Gizzard Yellow-feathered broiler Unknown 13 Guangzhou Live poultry market #1 2013.02.20 Gizzard Yellow-feathered broiler Unknown 14 Guangzhou Live poultry market #1 2013.02.21 Liver Yellow-feathered broiler Unknown 15 Guangzhou Live poultry market #1 2013.02.21 Heart Yellow-feathered broiler Unknown 16 Guangzhou Live poultry market #1 2013.02.28 Liver Yellow-feathered broiler Unknown S02 17 Guangzhou Live poultry market #1 2013.02.28 Heart Yellow-feathered broiler Unknown S02 18 Guangzhou Live poultry market #1 2013.02.28 Liver Black-bone chicken Unknown 19 Guangzhou Live poultry market #1 2013.02.28 Liver Yellow-feathered broiler Unknown 20 Guangzhou Live poultry market #1 2013.02.28 Liver Yellow-feathered broiler Unknown 21 Guangzhou Live poultry market #1 2013.02.28 Liver Yellow-feathered broiler Unknown 22 Guangzhou Live poultry market #1 2013.02.28 Liver Yellow-feathered broiler Unknown 23 Guangzhou Live poultry market #1 2013.02.28 Liver Yellow-feathered broiler Unknown 24 Guangzhou Live poultry market #1 2013.03.07 Liver Yellow-feathered broiler Unknown S5 25 Guangzhou Live poultry market #1 2013.03.07 Liver Yellow-feathered broiler Unknown S03 26 Guangzhou Live poultry market #1 2013.03.07 Heart Yellow-feathered broiler Unknown S03 27 Guangzhou Live poultry market #1 2013.03.07 Liver Yellow-feathered broiler Unknown S04 28 Guangzhou Live poultry market #1 2013.03.07 Heart Yellow-feathered broiler Unknown S04 29 Guangzhou Live poultry market #1 2013.03.07 Liver Black-bone chicken Unknown 30 Guangzhou Live poultry market #1 2013.03.07 Liver Yellow-feathered broiler Unknown 31 Guangzhou Live poultry market #1 2013.03.07 Liver Yellow-feathered broiler Unknown
Load more

Recommended publications
  • CHINA MERCHANTS LAND LIMITED 招商局置地有限公司 (Incorporated with Limited Liability in the Cayman Islands) (Stock Code: 978)
    Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement. CHINA MERCHANTS LAND LIMITED 招商局置地有限公司 (Incorporated with limited liability in the Cayman Islands) (Stock Code: 978) DISCLOSEABLE AND CONNECTED TRANSACTIONS: ACQUISITION OF EQUITY INTERESTS IN, AND PROVISION OF SHAREHOLDER’S LOANS TO, TWO PROJECT COMPANIES COOPERATION FRAMEWORK AGREEMENT I The Board is pleased to announce that on 5 May 2015, Guan Hua Gang, an indirect wholly- owned subsidiary of the Company, Shenzhen Lianxin, a company indirectly controlled by Ping An Real Estate, CR Land Shenzhen and Guangzhou Lianzhou, a project company established specifically for the construction and development of the real estate project on the AT1004010 Land situated in Tianhe District, Guangzhou, the PRC, entered into the Cooperation Framework Agreement I pursuant to which, among other things, (i) Guan Hua Gang, Shenzhen Lianxin and CR Land Shenzhen will subscribe in cash for their respective portions of the capital increase in the registered capital of Guangzhou Lianzhou as a result of which Guangzhou Lianzhou, which is wholly-owned by Shenzhen Lianxin as at the date of this announcement, will be owned as to 34%, 33% and 33% by Guan Hua Gang, Shenzhen Lianxin and CR Land Shenzhen respectively; and (ii) upon completion of the Guangzhou Lianzhou Capital Increase, Guan Hua Gang, Shenzhen Lianxin and CR Land Shenzhen will provide shareholders’ loans to Guangzhou Lianzhou in proportion to their shareholding percentage in Guangzhou Lianzhou.
    [Show full text]
  • Sites of Zou and Ma Migration in the Qing
    APPENDIX F Sites of Zou and Ma Migration in the Qing The information on Zou and Ma migration is drawn from the generational charts of the three primary genealogies, the MSDZZP (1945), FYZSZP (1947), and MTLZXZSZP (1911). Since precise dates of migration are given only very rarely, I have estimated the probable time of migration from the birth and death dates given. “Zou1” refers to the upper-shrine Zou lineage; “Zou2” to the lower-shrine. The table is organized by province, prefecture, and county. ________________________________________________________________________________________________ Late 17th– Late 18th– Late 19th– early 18th mid-19th early 20th Bookselling Location century century century site ________________________________________________________________________________________________ Anhui province Wuyuan 婺源 county (site of Ma migration in the late 16th c.) Guangdong province Chaozhou 潮州 prefecture Ma, Zou1 Zou2 * Chenghai 澄海 county Ma Dabu 大埔 county Ma, Zou2 * Jieyang 揭陽 county Ma * Guangzhou 廣州 prefecture Zou2 * Foshanzhen 佛山鎮 Zou1 * Qingyuan 清遠 county Zou2 Gaozhou 高州 prefecture Ma, Zou1 * Dianbai 電白 county Zou1 Huazhou 化州 county Zou1 Xinyi 信宜 county Ma Huizhou 惠州 prefecture Ma Zou2 * Boluo 博羅 county Zou2 Changning 長寧 county Ma Haifeng 海豐 county Ma Heping 和平 county (a site of Ma migration in the late 16th c.) Ma * Heyuan 河源 county Ma, Zou2 * Kuzhupai 苦竹派 village or market Ma, Zou1 Lianpingzhou 連平州 county Ma, Zou2 Longchuan 龍川 county Zou1, Zou2 * Yongan 永安 county Zou1 Zou1 * Jiayingzhou 嘉應 ( Jiaying department, a site of Zou1 migration in the late 16th c.) Zou2 Ma Ma * Changle 長樂 county Ma * Pingyuan 平遠 county Ma * Xingning 興寧 county Zou2 Ma * Zhenping 鎮平 county Ma, Zou1 Zou1 * Leizhou 雷州 prefecture Zou2 * Lianzhou 連州 prefecture Zou2 Zou2 Lianzhou 廉州 prefecture Zou1, Zou2 Hepu 合浦 county Zou1 Lingshan 靈山 county Ma, Zou1 Zou2 * Luodingzhou 羅定州 (Luoding department) Zou2 Nanxiong 南雄 prefecture Ma * Shixing 始興 county Ma Zou1, Zou2 * Qiongzhou 瓊州 prefecture Ma Zou1 Haikou 海口 city Zou1 Lingshui 陵水 county Zou2 Brokaw, Appendix F, p.
    [Show full text]
  • From Canton to Guangzhou Photographs by Felice Beato and Xu Peiwu
    From Canton to Guangzhou Photographs by Felice Beato and Xu Peiwu Gallery 16 Birmingham Museum and Art Gallery Birmingham, UK 3RD May – 10TH August 2008 The Exhibition This exhibition presents two series of photographs, taken almost 150 apart of the city of Canton / Guangzhou. The first body of work is a series of vintage photographs of city of Canton taken by the British photographer Felice Beato in 1860. These are amongst the earliest images taken by a European photographer in China. These historical photographs are just part of a significant collection of photographs, archives, books and other related material relating to China held in Birmingham Central Library and the City Archives. The second body of work is a series of images of the modern city of Guangzhou taken by the contemporary Chinese photographer Xu Peiwu: some of these will be taken in direct reference to the buildings and locations represented in Beato’s photographs. The exhibition will explore the different ways in which these two photographers documented buildings, street scenes and people in the city, and in so doing, reveal many of the dynamic changes that have occurred in the more recent process of urbanization. The exhibition is being jointly curated by Peter James, Head of Photographs, Birmingham Central Library and Dr Jiang Jeihong, Director of the Centre for Chinese Visual Arts at Birmingham City University. The exhibition will form part of a season of exhibitions staged by Birmingham Museum and Art Gallery which are being presented as part of the CHINA NOW Festival (www.chinanow.org.uk). The exhibition will be accompanied by a series of lunchtime talks organized in partnership with the Birmingham City University's Centre for Chinese Visual Arts.
    [Show full text]
  • The Emergence and Epidemiology of Haff Disease in China
    toxins Review The Emergence and Epidemiology of Haff Disease in China Thomas Y. K. Chan 1,2,3 1 Division of Clinical Pharmacology and Drug and Poisons Information Bureau, Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong, China; [email protected]; Tel.: +852-2632-3907 2 Centre for Food and Drug Safety, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China 3 Prince of Wales Hospital Poison Treatment Centre, Hong Kong, China Academic Editor: Vítor Vasconcelos Received: 18 October 2016; Accepted: 28 November 2016; Published: 1 December 2016 Abstract: Haff disease is a rare syndrome of unexplained myalgia and rhabdomyolysis occurring within 24 h of consumption of certain types of cooked freshwater fish or crustacean. It is caused by a yet unidentified heat-stable toxin. In the present review of published case studies and official press releases, the main objective is to report the emergence and epidemiology of Haff disease in China. Haff disease first occurred in Beijing in 2000 and in Lianzhou and Liannan, Guangdong Province in 2009. Subsequent outbreaks mostly occurred in the Jiangsu Province—Nanjing, Yangzhou, Huai’an, and Yancheng. Isolated outbreaks occurred in other cities since 2010—Shijiazhuang, Yueyang, Shanghai, Wuhu, Baoding, Shenzhen, and Hong Kong (imported cases from Shenzhen). Outbreaks occurred predominately in the summer. Crayfish accounted for almost all the outbreaks. Two large outbreaks occurred in Lianzhou and Liannan in 2009 (n = 54) after eating pomfrets and in Nanjing in 2010 (n = 42) after eating crayfish.
    [Show full text]
  • LIANZHOU, FIFTEEN YEARS of PHOTOGRAPHY 2019 EXHIBITION PROGRAMME the Year 2019 Marks the Fifteenth Year of Lianzhou’S Photographic Journey
    PRESS RELEASE LIANZHOU, FIFTEEN YEARS OF PHOTOGRAPHY 2019 EXHIBITION PROGRAMME The year 2019 marks the fifteenth year of Lianzhou’s photographic journey. Since 2005, the festival has gained international recognition as the most professional photography festival in China. In 2017 this ambition has been taken on by the Lianzhou Museum of Photography that opened in the city’s historical centre, granting China its first public institution devoted to the medium. This year we commemorate this anniversary with a series of exhibitions and public programmes. In fall the LMP will celebrate new talents with exhibitions from Chinese, American and Spanish emerging photographers. Meanwhile the theme of Lianzhou Foto festival’s fifteenth edition ‘A Chance for the Unpredictable’ will pay homage to photography’s practice and malpractice with an international theme exhibition under the curatorship of Peter Pfrunder. Alongside the theme exhibition will be over 50 solo and group shows presenting local and overseas talents. The festival opening on November 29 will coincide with the unveiling of LMP’s four winter exhibitions. During the opening week, Lianzhou will become a platform for discussion for Chinese and international photographers, curators, journalists, academics and enthusiasts. International press contact Catherine Philippot - Relations Media [email protected] LMP FALL EXHIBITIONS AUGUST 31 - NOVEMBER 8, 2019 Prune Philippot - Relations Media [email protected] Exhibtions : Haley Morris-Cafiero : The Visible Woman
    [Show full text]
  • Jiang Pengyi
    JIANG PENGYI Born in Yuanjiang, Hunan province, 1977 Lives and works in Beijing EDUCATION 1999 Beijing Institute of Art & Design, Beijing SELECTED SOLO EXHIBITIONS 2012 SH Contemporary, Booth: Aike-Dellarco, Shanghai Exhibition Center, Shanghai ART HK, Booth: Blindspot Gallery, Hong Kong Convention & Exhibition Centre, Hong Kong Luminant, Blindspot Gallery, Hong Kong No East, Aike-Dellarco, Palermo 2008 Galerie Paris-Beijing, Beijing SELECTED GROUP EXHIBITIONS 2013 Seven Sunsets, Waiting Dawns, All In One. How to kill a wondrous time...not wanting a thousand hours, Shanghai Gallery of Art, Shanghai REVEL - Celebrating MOCA's 8 Years in Shanghai, Museum of Contemporary Art, Shanghai The Rapture of Romantic Illusions, Fudi Aromatic Villa, Shanghai ON | OFF: China’s Young Artists in Concept and Practice, Ullens Center for Contemporary Art (UCCA), Beijing 2012 Every day, Shanghai Gallery of Art, Shanghai Revolving Stage - Contemporary Video Art in China, Arario Gallery, Cheonan The Discreet Charm of the Bourgeoisie: Contemporary Visions on China, Yi&C, Taipei A History of Chinese Contemporary Photography, Galerie Paris-Beijing, Brussels CAFAM . Future, CAFA Art Museum, Beijing Memento Mori, Arario Gallery, Beijing Architekturfotografie - Made in China, Museum für Angewandte Kunst Köln (MAKK), Cologne No Exit - Urban Space, Helsinki Photography Biennial 2012, Helsinki City Museum, Helsinki 2011 The Other Wave: Contemporary Chinese Photography, Ben Brown Fine Arts, London Be Natural Be Yourself, Frac des Pays la Loire Fonds Regional d'Art Contemporain,
    [Show full text]
  • Guangdong Electric Power Development Co., Ltd. 2015 Annual Report
    Guangdong Electric Power Development Co., Ltd. 2015 Annual Report Stock Code: 000539、200539 Stock Abbreviation: Yue Dian Li A、Yue Dian Li B Bond Code:112162.SZ Bond short name: 12 Yudean Bond Guangdong Electric Power Development Co., Ltd. 2015 Annual Report April 2016 1 Guangdong Electric Power Development Co., Ltd. 2015 Annual Report I. Important Notice, Table of Contents and Definitions The Board of Directors , Supervisory Committee ,Directors, Supervisors and Senior Executives of the Company hereby guarantees that there are no misstatement, misleading representation or important omissions in this report and shall assume joint and several liability for the authenticity, accuracy and completeness of the contents hereof. Mr.Li Zhuoxian, The Company leader, Mr. Li Xiaoqing, Chief financial officer and the Mr.Qin Jingdong, the person in charge of the accounting department (the person in charge of the accounting )hereby confirm the authenticity and completeness of the financial report enclosed in this Annual report. All the directors attended the board meeting for reviewing the Annual Report except the follows: The name of director who did The name of director who was Positions Reason not attend the meeting in person authorized Zhong Weimin director due to business Hong Rongkun Yang Xinli director due to business Yao Jiheng Zhang Xueqiu director due to business Liu Tao This annual report involves the forecasting description such as the future plans, and does not constitute the actual commitments of the company to the investors. The investors should pay attention to the investment risks. The Company is mainly engaged in thermal power generation. The business of thermal power generation is greatly affected by factors including electric power demand and fuel price.
    [Show full text]
  • Integrated Risk Management of Flood Disaster in Metropolitan Regions of China∗ ----To Balance Flood Disaster Magnitude and Vulnerability in Metropolitan Regions
    Integrated Risk Management of Flood Disaster in Metropolitan Regions of China∗ ----To Balance Flood Disaster Magnitude and Vulnerability in Metropolitan Regions 1,3 4,2 3 2 Peijun ShiP ,P Jingai WangP ,P Mingchuan YangP ,P Ying WangP ,P 2 2 2 Yan DingP ,P Li ZhuoP ,P Junhua ZhouP P 1. Institute of Resources Sciences, Beijing Normal University, Beijing, 100875, China; 2. Key Lab of Environmental Changes and Natural Disaster, Ministry of Education of China, Beijing Normal University, Beijing, 100875, China; 3.Research Center for Catastrophe Exposure and Insurance, SwissRe & Beijing Normal University, Beijing, 100875, China; 4. Department of Resources and Environmental Sciences, Beijing Normal University, Beijing, 100875, China Abstract Metropolitan regions of China are mainly located in the middle and lower reaches of major rivers, and a number of water bodies and wetlands are occupied by cities due to the greatly changes of land use. So, they face very serious danger of flood and it is urgent to improve the flood prevention level to reduce the flood disaster in metropolis of China. However, the practices of disaster reduction of recent 5 decades in China show that flood disaster is increasing with fluctuating, that is, the vulnerability of metropolis is heightening. Based on the analysis of flood in metropolitan regions of China, this report establishes a risk assessment system combining flood hazard and human and economic systems of Guangdong Province, South of China, as the case study area. And in addition, basic land use system and enterprise risk management system with the combination of government-enterprise (community)-insurance company are presented to balance flood disaster magnitude and vulnerability in metropolitan regions.
    [Show full text]
  • Lmp May 2019 1
    LMP MAY 2019 PROGRAMME ADVISORY Exhibitions Peter Knapp: Infinitely Blue The Image Memory of Lianzhou Archive Photographs 1965 to 1985 The Lost and Found Transfigured Bootleg Photographs From The Collection of Jean-Marie Donat Lin Shu: Pagoda On View 11th May, 2019 - 11th August, 2019 Location 120, Zhongshan Nan Road, Lianzhou, Guangdong This summer, the Lianzhou Museum of Photography (LMP) presents four new exhibitions showcasing the works of Chinese and overseas artists. Pyramid sea, 2010 Peter Knapp Peter Knapp: Infinitely Blue presents a set of monochromes, photomontages and reproductions imbued with mysticism. The Swiss-born photographer, linked to the Sky Art movement and close to New Realists group questions our relationship to the infinite. Following his Bauhaus training, he developed a habit of fiddling, scratching, gluing and arranging his compositions. His works are tinted with a deep, complex and multi-faceted blue, that sometimes might feel tarnished but always remains pure at its core. The Image Memory of Lianzhou presents a series of photographs taken in Lianzhou by three local pioneers of photography, Wang Dongfu, Du Jixi and Pan Renshi, who have left behind twenty years of photographic memories of their hometown. Revolutionary street parades marching along the street where the LMP was built, soldiers building plank roads on steep cliffs, statues and landmarks built in the Qin Dynasty which have now long ceased to exist. From 2016 on, through the collaboration with local photographers and former Lianzhou cultural sector officials Pan Wei and Huang Zhaiyu, LMP discovered and digitalized more than 300 archive images taken by the three local photographers.
    [Show full text]
  • Statistical Analysis of Mesovortices During the First Rainy Season in South China
    Statistical Analysis of Mesovortices During The First Rainy Season In South China Ying Tang ( [email protected] ) Meteorological Bureau of Shenzhen Municipality Xin Xu Nanjing University Yuanzhao Chen Meteorological Bureau of Shenzhen Municipality Xunlai Chen Meteorological Bureau of Shenzhen Municipality Jiahao Liang Guangzhou Institute of Tropical and Marine Meteorology Jia Liu Meteorological Bureau of Shenzhen Municipality Yuan Wang Nanjing University Research Article Keywords: Mesovortices, Doppler radar, First rainy season in South China, Pearl River Delta region Posted Date: May 28th, 2021 DOI: https://doi.org/10.21203/rs.3.rs-464653/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Page 1/17 Abstract Based on the Doppler radar observation and reanalysis data, the statistical characteristics of mesovortices (MVs) during the rst rainy season (April–June) in South China from 2017 to 2019 are studied, including their spatio-temporal distributions, structural features and favorable environmental conditions. The results show that the MVs usually exhibit short lifetime, among which about 70% last for less than 30 minutes. The intensity and horizontal scale of the MVs are proportional to their lifetime. Long-lived MVs have larger horizontal scales and stronger intensities than short-lived ones. The MVs are mainly observed over the Pearl River Delta region, followed by the western Guangdong province, but relatively fewer in both eastern and northern Guangdong province. The uneven spatial distribution of the MVs is closely related to the differences of environment conditions over South China. The monsoonal south-westerlies, water vapor ux, atmospheric instability and vertical wind shear over southwest Guangdong are signicantly larger than those in other regions, which are favorable for the formation of MVs.
    [Show full text]
  • On the Generic Taxonomy of Opisthotropis Balteata (Cope, 1895) (Squamata: Colubridae: Natricinae): Taxonomic Revision of Two Natricine Genera
    Asian Herpetological Research 2019, 10(2): 105–128 ORIGINAL ARTICLE DOI: 10.16373/j.cnki.ahr.180091 On the Generic Taxonomy of Opisthotropis balteata (Cope, 1895) (Squamata: Colubridae: Natricinae): Taxonomic Revision of Two Natricine Genera Jinlong REN1,2,3, Kai WANG4, Peng GUO5, Yingyong WANG6, Tao Thien NGUYEN7,8 and Jiatang LI1,2,9* 1 CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China 2 Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, Yunnan 650223, China 3 University of Chinese Academy of Sciences, Beijing 100049, China 4 Sam Noble Oklahoma Museum of Natural History and Department of Biology, University of Oklahoma, Norman, Oklahoma 73019, USA 5 College of Life Sciences and Food Engineering, Yibin University, Yibin, Sichuan 644007, China 6 State Key Laboratory of Biocontrol / The Museum of Biology, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China 7 Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam 8 Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam 9 Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar Abstract The single prefrontal configuration has historically been used as an important diagnostic character for many natricine taxa. For example, the genus Trimerodytes Cope, 1895 was long been regarded as a junior synonym of Opisthotropis Günther, 1872 for their similar prefrontal configurations and the type species, T.
    [Show full text]
  • Shaoguan Tuhua, a Local Vernacular of Northern Guangdong Province, China: a New Look from a Quantitative and Contact Linguistic Perspective
    Shaoguan Tuhua, a Local Vernacular of Northern Guangdong Province, China: A New Look from a Quantitative and Contact Linguistic Perspective Thesis Presented in Partial Fulfillment of the Requirements for the Degree Master of Arts in the Graduate School of The Ohio State University By Litong Chen, B.A. Graduate Program in East Asian Languages and Literatures The Ohio State University 2012 Thesis Committee: Marjorie K. M. Chan, Advisor Donald Winford Zhiguo Xie Copyright by Litong Chen 2012 Abstract This thesis reanalyzes data collected from published fieldwork sources and brings a new perspective to Shaoguan Tuhua, the genetically unclassified vernacular speech used in the Shaoguan area, northern Guangdong Province, China. The reanalysis consists of a quantitative study of the Shaoguan Tuhua varieties and some Hakka varieties (the regional lingua franca) and a contact linguistic study on one of the Shaoguan Tuhua varieties, Shibei Shaoguan Tuhua, and its Hakka neighbor, Qujiang Hakka. This thesis uses a combined methodology. It consists of the traditional Chinese dialectological research methods, phylogenetic network (computational) methods, and contact linguistic frameworks. Neither phylogenetic network methods nor contact linguistic frameworks are sufficiently used in Chinese dialectology. In terms of studying Shaoguan Tuhua, the use of these methodologies is new. This thesis first of all introduces the historical and sociolinguistic contexts of Shaoguan Tuhua. Shaoguan Tuhua has been in contact with Hakka for about seven hundred years, and Hakka speakers significantly outnumber Shaoguan Tuhua speakers. The majority of Shaoguan Tuhua speakers, especially the younger generation, can speak fluent Hakka. ii Based on the historical and sociolinguistic background, this thesis goes on to examine the result of the Shaoguan Tuhua-Hakka contact.
    [Show full text]