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Stable Isotope Techniques to Address Coastal Marine Pollution
Chapter 10 Stable Isotope Techniques to Address Coastal Marine Pollution Azhar Mashiatullah, Nasir Ahmad and Riffat Mahmood Additional information is available at the end of the chapter http://dx.doi.org/10.5772/62897 Abstract Stable isotopes of carbon (δ13C), sulfur (δ34S), oxygen (δ18O), hydrogen (δ2H), nitrogen (δ15N), and radioactive isotope of hydrogen (tritium) have been applied in combina‐ tion with conventional techniques (chemical) to investigate Karachi coastal water pollution due to Layari and Malir rivers, which mainly carry the domestic and industrial wastewater of Karachi Metropolitan. Heavy metal contents of the Manora Channel and southeast coastal waters were higher than the Swedish guidelines for the quality of seawater. By contrast, heavy metal concentrations in coastal sediments were found to be significantly higher than that of seawater. Mn and Ni contents in sediments of entire coast (Manora Channel, southeast and northwest coast) were above USEPA guidelines except at Buleji site, whereas Cr, Zn, and Cu levels only in Manora Channel sediments were higher than USEPA guidelines. The higher heavy metal contents of Manora Channel water and sediments can be attributed to an influx of a major portion of untreated industrial and/or domestic wastewater. Layari and 13 34 Malir river water was observed to be depleted in δ C(TDIC)and δ S, which showed heavy influx of sewage into these rivers. Manora Channel water was also depleted in 13 34 δ CTDIC and δ S during low tide environment, showing a large-scale domestic wastewater mixing with seawater. Southeast coastal water was found to be slightly 13 34 enriched in δ C(TDIC) and δ S and exhibited mixing of relatively small quantity of 13 34 sewage with the seawater as compared to the Manora Channel. -
Environmental Problems of the Marine and Coastal Area of Pakistan: National Report
-Ç L^ q- UNITED NATIONS ENVIRONMENT PROGRAMME Environmental problems of the marine and coastal area of Pakistan: National Report UNEP Regional Seal Reports and Studies No. 77 PREFACE The Regional Seas Pragra~eMS initiated by UMEP in 1974. Since then the Governing Council of UNEP has repeatedly endorsed a regional approach to the control of marine pollution and the ma-t of marine ad coastal resources ad has requested the develqmmt of re#ioml action plans. The Regional Seas Progr- at present includes ten mimyand has over 120 coastal States à participating in it. It is amceival as an action-oriented pmgr- havim cmcera not only fw the consqmces bt also for the causes of tnvirommtal dtgradation and -ssing a msiveapproach to cantrollbg envimtal -1- thmqb the mamgaent of mrine and coastal areas. Each regional action plan is formulated according to the needs of the region as perceived by the Govemnents concerned. It is designed to link assessment of the quality of the marine enviroment and the causes of its deterioration with activities for the ma-t and development of the marine and coastal enviroment. The action plans promote the parallel developmmt of regional legal agreemnts and of actioworimted pmgr- activitiesg- In Hay 1982 the UNEP Governing Council adopted decision 10/20 requesting the Executive Director of UNEP "to enter into consultations with the concerned States of the South Asia Co-operative Envirof~entProgran~e (SACEP) to ascertain their views regarding the conduct of a regional seas programe in the South Asian Seasm. In response to that request the Executive Director appointed a high level consultant to undertake a mission to the coastal States of SACW in October/November 1982 and February 1983. -
Status of Metal Pollution in the River and Coastal Areas of Karachi
Middle-East Journal of Scientific Research 22 (9): 1288-1293, 2014 ISSN 1990-9233 © IDOSI Publications, 2014 DOI: 10.5829/idosi.mejsr.2014.22.09.9234 Status of Metal Pollution in the River and Coastal Areas of Karachi Seema Jilani Institute of Environmental Studies, University of Karachi, Karachi-Pakistan Abstract: The study objective was to determine the level and the distribution pattern of heavy metals in the coastal waters receiving a continuous discharge of untreated domestic and industrial effluent through Lyari River. In this research, the heavy metals in the surface water samples collected from Lyari River and adjoining coastal areas of Karachi namely; Fish Harbour, Netty Jetty, West Wharf, Naval Dockyard and Sandspit were analyzed using the atomic absorption spectrophotometer. The results of the analysis indicate that the mean concentrations of all metals (Cu, Fe, Mn, Ni, Pb & Zn) except for Cr, in Lyari River and Karachi fish harbor were significantly higher than the standard values. However, metals concentration decreased gradually as the distance from the discharged point increased and at the Sandspit point where no mixing of wastewater, the concentration was within safe limits. Moreover, the level of heavy metal concentration in the water samples were in following descending order Zn>Mn>Fe>Cu>Ni>Pb. Compare to other metal element, the Zn level was notably high and its main source of pollution could be the domestic and industrial waste as well as shipping activity. The study findings therefore suggest that incorporating quick remedial measures can combat pollution and help in achieving the socioeconomic sustainability. Key words: Heavy Metals Coastal Areas Industrial Waste Pollution Sustainability INTRODUCTION as copper, manganese, iron and zinc are important trace micronutrients. -
Source Apportionment of PM10 at an Urban Site of a South Asian Mega City
Aerosol and Air Quality Research, 18: 2498–2509, 2018 Copyright © Taiwan Association for Aerosol Research ISSN: 1680-8584 print / 2071-1409 online doi: 10.4209/aaqr.2017.07.0237 Source Apportionment of PM10 at an Urban Site of a South Asian Mega City Imran Shahid1*, Muhammad Usman Alvi2,3, Muhammad Zeeshaan Shahid4, Khan Alam5, 6 Farrukh Chishtie 1 Institute of Space Technology, Islamabad 44000, Pakistan 2 Institute of Chemistry, University of the Punjab, Lahore 54590, Pakistan 3 University of Education, Okara Campus, Okara 57000, Pakistan 4 King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia 5 Department of Physics, University of Peshawar, Peshawar 25120, Pakistan 6 SERVIR-Mekong, Asian Disaster Preparedness Center, Bangkok 10400, Thailand ABSTRACT In the present study, analysis and source apportionment of the elemental composition of PM10 was conducted in the urban atmosphere of Karachi. Trace elements such as Ni, Ba, Cd, Ca, Mg, Cr, Mn, Fe, Co, Cu, Sr and Ti were measured. The PM10 concentration ranged from 255 μg m–3 to 793 μg m–3, with an average of 438 ± 161 μg m–3. Among the various elements analyzed, concentrations of Ca, Al and Fe were the highest (> 10000 ng m–3), followed by Mg and S (> 1000 ng m–3). Elements such as Zn, P, Cu, Pb, Mn, Ti, Sr and Ba demonstrated medium concentrations (> 100 ng m–3), whereas the lowest concentrations were found for elements such as Cr, Ni and Se (> 10 ng m–3). The Positive Matrix Factorization (PMF) model identified five possible factors that contributed to PM10, namely, biomass burning, coal combustion, resuspended road/soil dust, vehicular emissions and industrial dust. -
Ecological Impbalances in the Coastal Areas of Pakistan and Karachi
Pakistan Journal of Marine Sciences, VoL4(2), 159-174, 1995. REVIEW ARTICLE ECOLOGICAL IMBALANCES IN THE COASTAL AREAS OF PAKISTAN AND KARACID HARBOUR Mirza Arshad Ali Beg 136-C, Rafahe Aam Housing Society, Malir Halt, Karachi-75210. ABSTRACT: The marine environment of Pakistan has been described in the context of three main regions : the Indus delta and its creek system, the Karachi coastal region, and the Balochistan coast The creeks, contrary to concerns, do receive adequate discharges of freshwater. On site observations indicate that freshwater continues flowing into them during the lean water periods and dilutes the seawater there. A major factor for the loss of mangrove forests. as well as ecological disturbances in the Indus delta is loss of the silt load resulting in erosion of its mudflats. The ecological disturbance has been aggravated by allowing camels to browse the mangroves. The tree branches and trunks, having been denuded of leaves are felled for firewood. Evidence is presented to show that while indiscriminate removal of its mangrove trees is responsible for the loss oflarge tracts of mangrove forests, overharvesting of fisheries resources has depleted the river of some valuable fishes that were available from the delta area. Municipal and industrial effluents discharged into the Lyari and Malir rivers and responsible for land-based pollution at the Karachi coast and the harbour. The following are the three major areas receiving land-based pollution and whose environmental conditions have been examined in detail: (l) the Manora channel, located on the estuar}r of the Lyari river and serving as the main harbour, has vast areas forming its western and eastern backwaters characterized by mud flats and mangroves. -
PAD2894 Public Disclosure Authorized INTERNATIONAL BANK for RECONSTRUCTION and DEVELOPMENT
FOR OFFICIAL USE ONLY Report No: PAD2894 Public Disclosure Authorized INTERNATIONAL BANK FOR RECONSTRUCTION AND DEVELOPMENT PROJECT APPRAISAL DOCUMENT ON A PROPOSED LOAN IN THE AMOUNT OF US$230 MILLION TO THE Public Disclosure Authorized ISLAMIC REPUBLIC OF PAKISTAN FOR A COMPETITIVE AND LIVABLE CITY OF KARACHI PROJECT June 6, 2019 Social, Urban, Rural and Resilience Global Practice Finance, Competitiveness and Innovation Global Practice Public Disclosure Authorized South Asia Region This document has a restricted distribution and may be used by recipients only in the performance of Public Disclosure Authorized their official duties. Its contents may not otherwise be disclosed without World Bank authorization. CURRENCY EQUIVALENTS (Exchange Rate Effective April 30, 2019) Currency Unit = P KR US$1 = PKR 141.65 FISCAL YEAR July 1 – June 30 Regional Vice President: Hartwig Schafer Country Director: Patchamuthu Illangovan Senior Global Practice Directors: Ede Jorge Ijjasz-Vasquez; Alfonso Garcia Mora Practice Managers: Catalina Marulanda; Nabila Assaf Task Team Leaders: Yoonhee Kim; Namoos Zaheer ABBREVIATIONS AND ACRONYMS ADP Annual Development Plan MC(s) Minimum Condition(s) AED Anti-Encroachment Drive MOU Memorandum of Understanding AFS Annual Financial Statements NGO Non-government organization AGP Auditor General of Pakistan NOC No-Objection Certificate APA Annual Performance Assessment O&M Operations and Maintenance APPM Accounting Policies and Procedures Manual OSR Own-Source Revenue ARP(s) Abbreviated Resettlement Plan(s) OZT Octroi -