Indoor Air Quality
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Report to the Legislature: Indoor Air Pollution in California
California Environmental Protection Agency Air Resources Board Report to the California Legislature INDOOR AIR POLLUTION IN CALIFORNIA A report submitted by: California Air Resources Board July, 2005 Pursuant to Health and Safety Code § 39930 (Assembly Bill 1173, Keeley, 2002) Arnold Schwarzenegger Governor Indoor Air Pollution in California July, 2005 ii Indoor Air Pollution in California July, 2005 ACKNOWLEDGEMENTS This report was prepared with the able and dedicated support from Jacqueline Cummins, Marisa Bolander, Jeania Delaney, Elizabeth Byers, and Heather Choi. We appreciate the valuable input received from the following groups: • Many government agency representatives who provided information and thoughtful comments on draft reports, especially Jed Waldman, Sandy McNeel, Janet Macher, Feng Tsai, and Elizabeth Katz, Department of Health Services; Richard Lam and Bob Blaisdell, Office of Environmental Health Hazard Assessment; Deborah Gold and Bob Nakamura, Cal/OSHA; Bill Pennington and Bruce Maeda, California Energy Commission; Dana Papke and Kathy Frevert, California Integrated Waste Management Board; Randy Segawa, and Madeline Brattesani, Department of Pesticide Regulation; and many others. • Bill Fisk, Lawrence Berkeley National Laboratory, for assistance in assessing the costs of indoor pollution. • Susan Lum, ARB, project website management, and Chris Jakober, for general technical assistance. • Stakeholders from the public and private sectors, who attended the public workshops and shared their experiences and suggestions -
Wind- Chimney
WIND-CHIMNEY Integrating the Principles of a Wind-Catcher and a Solar-Chimney to Provide Natural Ventilation A Thesis presented to the Faculty of California Polytechnic State University, San Luis Obispo In Partial Fulfillment of the Requirements for the Degree Master of Science in Architecture by Fereshteh Tavakolinia December 2011 WIND-CHIMNEY Integrating the Principles of a Wind-Catcher and a Solar-Chimney to Provide Natural Ventilation © 2011 Fereshteh Tavakolinia ALL RIGHTS RESERVED ii COMMITTEE MEMBERSHIP TITLE: WIND-CHIMNEY Integrating the Principles of a Wind-Catcher and a Solar-Chimney to Provide Natural Ventilation AUTHOR: Fereshteh Tavakolinia DATE SUBMITTED: December 2011 COMMITTEE CHAIR: James A. Doerfler, Associate Department Head COMMITTEE MEMBER: Jacob Feldman, Professor iii WIND-CHIMNEY Integrating the principles of a wind-catcher and a solar chimney to provide natural ventilation Fereshteh Tavakolinia Abstract This paper suggests using a wind-catcher integrated with a solar-chimney in a single story building so that the resident might benefit from natural ventilation, a passive cooling system, and heating strategies; it would also help to decrease energy use, CO2 emissions, and pollution. This system is able to remove undesirable interior heat pollution from a building and provide thermal comfort for the occupant. The present study introduces the use of a solar-chimney with an underground air channel combined with a wind-catcher, all as part of one device. Both the wind-catcher and solar chimney concepts used for improving a room’s natural ventilation are individually and analytically studied. This paper shows that the solar-chimney can be completely used to control and improve the underground cooling system during the day without any electricity. -
Microplastic Pollution in California
Microplastic Pollution in California: A PRECAUTIONARY FRAMEWORK AND SCIENTIFIC GUIDANCE TO ASSESS AND ADDRESS RISK TO THE MARINE ENVIRONMENT APRIL 2021 MICROPLASTIC POLLUTION IN CALIFORNIA About This Document CONTRIBUTORS Working Group Members Susanne Brander Oregon State University (Co-Chair) Responding to State legislation (S.B. 1263) to develop a Eunha Hoh Statewide Microplastics Strategy, the California Ocean San Diego State University (Co-Chair) Protection Council (OPC) funded the California Ocean Kenneth Unice Science Trust (OST) to convene a Working Group Cardno ChemRisk (Co-Chair) of scientific experts to develop a risk assessment Anna-Marie Cook U.S. Environmental Protection framework for microplastic pollution in California’s Agency (Retired) marine environment and provide scientific guidance Rusty Holleman to inform source reduction activities. This document University of California, Davis represents the resulting risk assessment framework, Chelsea Rochman University of Toronto constructed within the bounds of the current state Julie Thayer of scientific knowledge, as well as scientific guidance Farallon Institute for assessing and addressing microplastic pollution Project Team in California’s marine environment. We thank the Dominique Kone Policy Advisory Committee and External Advisors for California Ocean Science Trust their thoughtful advice and feedback throughout this Kiya Bibby California Ocean Science Trust process, as well as Dr. Albert Koelmans and Dr. Wayne Anthony Rogers Landis for their independent review of the full report. California Ocean Science Trust Policy Advisory Committee Scott Coffin SUGGESTED CITATION California State Water Resources Control Board Brander, S.M.*, Hoh, E.*, Unice, K.M.*, Bibby, K.R., Cook, A.M., Holleman, R.C., Kone, D.V., Rochman, C.M., Thayer, J.A. -
Solar Heating and Cooling & Solar Air-Conditioning Position Paper
Task 53 New Generation Solar Cooling & Heating Systems (PV or solar thermally driven systems) Solar Heating and Cooling & Solar Air-Conditioning Position Paper November 2018 Contents Executive Summary ............................................................. 3 Introduction and Relevance ................................................ 4 Status of the Technology/Industry ...................................... 5 Technical maturity and basic successful rules for design .............. 7 Energy performance for PV and Solar thermally driven systems ... 8 Economic viability and environmental benefits .............................. 9 Market status .................................................................................... 9 Potential ............................................................................. 10 Technical potential ......................................................................... 10 Costs and economics ..................................................................... 11 Market opportunities ...................................................................... 12 Current Barriers ................................................................. 12 Actions Needed .................................................................. 13 This document was prepared by Daniel Neyer1,2 and Daniel Mugnier3 with support by Alexander Thür2, Roberto Fedrizzi4 and Pedro G. Vicente Quiles5. 1 daniel neyer brainworks, Oberradin 50, 6700 Bludenz, Austria 2 University of Innsbruck, Technikerstr. 13, 6020 Innsbruck, Austria -
Healthy Climate® Indoor Air Quality Systems
HEPA Bypass Air Filtration Systems Healthy Climate® Indoor Air Quality Systems HEPA-20 HEPA-40 HEPA-60 The best possible air filtration. High-Efficiency Particulate Air (HEPA) Filtration Systems ® 99.97% efficiency rating Pollutants like dust, pollen, bacteria and viruses find their way into your for removal of all small, home’s air every day. These pollutants can cause poor indoor air quality, breathable particles, airborne mold spores, bacteria and which impacts both your home environment and health. At the very least, Place. viruses, down to 0.3 micron poor air quality can make your home uncomfortable. And, if you’re one of Bypass configuration quietly circulates and cleans the air more than 50 million Americans who suffer from allergies, poor air quality throughout the home can make your home very unhealthy. Designed for easy integration BETTER with Lennox® heating and HIGHLY EFFECTIVE AIR FILTRATION FOR A CLEANER, cooling systems for total HEALTHIER HOME ENVIRONMENT. home comfort …A A Healthy Climate® high-efficiency particulate air (HEPA) bypass filtration Best possible air-filtration performance system can go a long way toward improving the air you breathe. Using the same filtration technology found in hospital operating rooms and HOME science labs, a HEPA system removes nearly all allergy-inducing contaminants, including even the smallest particles and bacteria. It filters and freshens the air, so you can breathe easier. Highly effective filtration. THREE CLASSES OF AIR CONTAMINANTS Lennox makes your With a particle-efficiency rating of 99.97%, this system captures and Particles—Pollen, dust mites, dirt, pet dander. filters particles and bioaerosols as Particles are any small as 0.3 micron—contaminants substances measuring less than 100 microns that standard filtration systems in diameter. -
ASHRAE Position Document on Filtration and Air Cleaning
ASHRAE Position Document on Filtration and Air Cleaning Approved by ASHRAE Board of Directors January 29, 2015 Reaffirmed by Technology Council January 13, 2018 Expires January 23, 2021 ASHRAE 1791 Tullie Circle, NE • Atlanta, Georgia 30329-2305 404-636-8400 • fax: 404-321-5478 • www.ashrae.org © 2015 ASHRAE (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAE's prior written permission. COMMITTEE ROSTER The ASHRAE Position Document on Filtration and Air Cleaning was developed by the Society's Filtration and Air Cleaning Position Document Committee formed on January 6, 2012, with Pawel Wargocki as its chair. Pawel Wargocki, Chair Dean A. Saputa Technical University of Denmark UV Resources Kongens Lyngby, Denmark Santa Clarita, CA Thomas H. Kuehn William J. Fisk University of Minnesota Lawrence Berkeley National Laboratory Minneapolis, MN Berkeley, CA H.E. Barney Burroughs Jeffrey A. Siegel Building Wellness Consultancy, Inc. The University of Toronto Johns Creek, GA Toronto, ON, Canada Christopher O. Muller Mark C. Jackson Purafil Inc. The University of Texas at Austin Doraville, GA Austin, TX Ernest A. Conrad Alan Veeck BOMA International National Air Filtration Association Washington DC Virginia Beach, VA Other contributors: Dean Tompkins Madison, WI for his contribution on photocatalytic oxidizers Paul Francisco, Ex-Officio Cognizant Committee Chair Environmental Health Committee University of Illinois Champaign, IL ASHRAE is a registered trademark in the U.S. Patent and Trademark Office, owned by the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. © 2015 ASHRAE (www.ashrae.org). For personal use only. -
Improving Air Quality for Operators of Mobile Machines in Underground Mines
atmosphere Article Improving Air Quality for Operators of Mobile Machines in Underground Mines Andrzej Szczurek 1, Monika Maciejewska 1,*, Marcin Przybyła 2 and Wacław Szetelnicki 2 1 Faculty of Environmental Engineering, Wroclaw University of Science and Technology, Wybrze˙zeWyspia´nskiego27, 50-370 Wrocław, Poland; [email protected] 2 Centrum Bada´nJako´scisp. zo. o., ul. M. Skłodowskiej-Curie 62, 59-301 Lubin, Poland; [email protected] (M.P.); [email protected] (W.S.) * Correspondence: [email protected]; Tel.: +48-7132-028-68 Received: 12 November 2020; Accepted: 9 December 2020; Published: 18 December 2020 Abstract: In underground mines, mobile mining equipment is critical for the production system. The microenvironment inside the mobile machine may cause exposure to strongly polluted mine air, which adversely affects the health and working performance of the operator. Harmful pollutants may access the cabin together with the ventilation air delivered from the machine’s surroundings. This work proposes a solution that is able to ensure that the air for the machine operator is of proper quality. The proposal emerged from an analysis of the compliance of cabins of mobile machines working underground in mines with occupational health and safety (H&S) standards. An analytical model of air quality in a well-mixed zone was utilized for this purpose. The cabin atmosphere was investigated with regard to the concentration of gaseous species in the surrounding air, the cabin ventilation rate, and human breathing parameters. The analysis showed that if currently available ventilation approaches are used, compliance with multiple H&S standards cannot be attained inside the cabin if standards are exceeded in the surroundings of the machine. -
Air Conditioning and Refrigeration Systems
AAS (60 SCH*) ® Air Conditioning *Semester Credit Hour 8/2020 First Semester - 15 SCH Second Semester - 15 SCH COSC 1301 - Introduction to Computing HART 1341 - Residential Air Conditioning HART 1301 - Basic Electricity for HVAC HART 1345 - Gas and Electric Heating HART 1307 - Refrigeration Principles HART 2341 - Commercial Air Conditioning HART 1310 - HVAC Shop Practices and Tools HART 2349 - Heat Pumps PSYC 1300 - Learning Framework SPCH 1321 - Business & Professional Communication Third Semester - 15 SCH Fourth Semester - 15 SCH HART 2331 - Advanced Electricity for HVAC HART 2334 - Advanced Air Conditioning Controls HART 2336 - Air Conditioning Troubleshooting HART 2343 - Industrial Air Conditioning HART 2338 - Air Conditioning Installation & Startup HART 1356 - EPA Recovery Certification Preparation HART 2345 - Residential Air Conditioning Systems Design MATH 1332 - Contemporary Mathematics ENGL 1301 - Composition I DRAM 1310 - Introduction to Theater Marketable Skills Program Outcomes Math Skills; manage time and materials; acquire and evaluate • Install, troubleshoot and repair refrigerators, freezers, and information; interpret and communicate information; oral and window air conditioners. written communications skills; computer skills; teamwork; cultural • Install, troubleshoot and repair split or package residential diversity; apply technology to work; creative thinking; decision air conditioning systems, including electric furnaces, gas making; problem solving; self-management; construction and furnaces and heat pumps. industrial -
Indoor Air Quality
Indoor Air Quality Poor indoor air quality can cause a stuffy nose, sore throat, coughing or wheezing, headache, burning eyes, or skin rash. People with asthma or other breathing problems or who have allergies may have severe reactions. Common Indoor Air Pollutants Poor indoor air quality comes from many sources, including: » Tobacco smoke » Mold » Pollen » Allergens such as those from cats, dogs, mice, dust mites, and cockroaches » Smoke from fireplaces and woodstoves » Formaldehyde in building materials, textiles, and furniture » Carbon monoxide from gas furnaces, ovens, and other appliances » Use of household products such as cleaners and bug sprays » Outdoor air pollution from factories, vehicles, wildfires, and other sources How to Improve Indoor Air Quality » Open windows to let in fresh air. • However, if you have asthma triggered by outdoor air pollution or pollen, opening windows might not be a good idea. In this case, use exhaust fans and non-ozone-producing air cleaners to reduce exposure to these triggers. » Clean often to get rid of dust, pet fur, and other allergens. • Use a vacuum cleaner equipped with a HEPA filter. • Wet or damp mopping is better than sweeping. » Take steps to control mold and pests. » Do not smoke, and especially do not smoke indoors. If you think poor indoor air is making you sick, please see or call a doctor or other health care provider. About CDC CDC is a federal public health agency based in Atlanta, GA. Our mission is to promote health and quality of life by preventing and controlling disease, injury and disability. For More Information We want to help you to stay healthy. -
Diagnosing IAQ Problems
Diagnosing IAQ Problems he goal of the diagnostic building T Start (reason for concern) investigation is to identify and solve the indoor air quality complaint in a way that t 6 prevents it from recurring and that does not Initial walkthrough n preparation create other problems. This section n visual inspection describes a method for discovering the n talk with occupants and staff cause of the complaint and presents a t “toolbox” of diagnostic activities to assist Do you have Yes you in collecting information. an explanation Just as a carpenter uses only the tools for the complaint ? that are needed for any given job, an IAQ No investigator should use only the investiga- t Collect additional tive techniques that are needed. Many information about indoor air quality complaints can be n building occupants resolved without using all of the diagnostic n the HVAC system n pollutant pathways tools described in this chapter. For n pollutant sources example, it may be easy to identify the (sample contaminants if needed) source of cooking odors that are annoying t nearby office workers and solve the Develop one or more hypotheses problem by controlling pressure relation- to explain the problem. Test by ships (e.g., installing exhaust fans) in the manipulating building conditions or exposure, or by performing food preparation area. Similarly, most appropriate tests. mechanical or carpentry problems prob- ably require only a few of the many tools t t you have available and are easily accom- Do results Attempt plished with in-house expertise. No Yes Follow-up support your a control validation The use of in-house personnel builds hypothesis ? strategy skills that will be helpful in minimizing and resolving future problems. -
Wind Catchers
Journal of Sustainable Development Vol. 3, No. 2; June 2010 Wind Catchers: Remarkable Example of Iranian Sustainable Architecture Amirkhani Aryan (Corresponding author's address) Department of Architecture, Faculty of Art, University of Tarbiat Modares, Jalal Ale Ahmad St, Tehran, Iran Tel/Fax: 98-21-4441-6537 E-mail: [email protected] Zamani Ehsan Department of Architecture, Faculty of Art, University of Tarbiat Modares, Jalal Ale Ahmad St, Tehran, Iran Tel/Fax: 98-21-4427-2493 E-mail: [email protected] Saidian Amin Department of Architecture, Faculty of Art, University of shahid beheshti, velenjak St, Tehran, Iran Tel/Fax: 98-21-6601-9587 E-mail: [email protected] Khademi Masoud Department of Urban design, Faculty of Art, University of Tarbiat Modares, Jalal Ale Ahmad St, Tehran, Iran Abstract As scientists we tend to view technology as a scientific system but in fact the success of a particular technology at a particular time may rest less on its efficient performance and more on its 'social' relevance and impact. We now need to identify sustainable design investments for a very uncertain future of expanding populations, scarcer resources and climate change. Buildings in the Iranian desert regions are constructed according to the specific climatic conditions and differ with those built in other climates. Desert buildings are equipped with air traps, arched roofed, water reservoirs with arched domes and ice stores for the preservation of ice. The operation of modern coolers is similar to the old Iranian air traps which were built at the entrance of the house over underground water reservoirs or ponds built inside the house. -
WHO Guidelines for Indoor Air Quality : Selected Pollutants
WHO GUIDELINES FOR INDOOR AIR QUALITY WHO GUIDELINES FOR INDOOR AIR QUALITY: WHO GUIDELINES FOR INDOOR AIR QUALITY: This book presents WHO guidelines for the protection of pub- lic health from risks due to a number of chemicals commonly present in indoor air. The substances considered in this review, i.e. benzene, carbon monoxide, formaldehyde, naphthalene, nitrogen dioxide, polycyclic aromatic hydrocarbons (especially benzo[a]pyrene), radon, trichloroethylene and tetrachloroethyl- ene, have indoor sources, are known in respect of their hazard- ousness to health and are often found indoors in concentrations of health concern. The guidelines are targeted at public health professionals involved in preventing health risks of environmen- SELECTED CHEMICALS SELECTED tal exposures, as well as specialists and authorities involved in the design and use of buildings, indoor materials and products. POLLUTANTS They provide a scientific basis for legally enforceable standards. World Health Organization Regional Offi ce for Europe Scherfi gsvej 8, DK-2100 Copenhagen Ø, Denmark Tel.: +45 39 17 17 17. Fax: +45 39 17 18 18 E-mail: [email protected] Web site: www.euro.who.int WHO guidelines for indoor air quality: selected pollutants The WHO European Centre for Environment and Health, Bonn Office, WHO Regional Office for Europe coordinated the development of these WHO guidelines. Keywords AIR POLLUTION, INDOOR - prevention and control AIR POLLUTANTS - adverse effects ORGANIC CHEMICALS ENVIRONMENTAL EXPOSURE - adverse effects GUIDELINES ISBN 978 92 890 0213 4 Address requests for publications of the WHO Regional Office for Europe to: Publications WHO Regional Office for Europe Scherfigsvej 8 DK-2100 Copenhagen Ø, Denmark Alternatively, complete an online request form for documentation, health information, or for per- mission to quote or translate, on the Regional Office web site (http://www.euro.who.int/pubrequest).