[1]
Urban Air Quality. United Nations Environment Pro-gramme, Urban Environment Unit -
http://www.unep.org/urban_environment/issues/urban_air.asp
[2]
Stegeman, John J. & Solow, Andrew R,“A Look Back at the London Smog of 1952 and the Half Century Since A Half Century Later: Recollections of the London Fog,” Environmental Health Perspectives, 2002.
[3]
“Overview of the 1948 Donora Smog,” Pennsylvania Department of Environmental Protec-tion.
[4]
Y.L. Sun, G.S. Zhuang, Y. Wang, L.H. Han, J.H. Guo, M. Dan, W.J. Zhang, Z.F.Wang and Z.P. Hao, “The Air-Borne Particulate Pollution in Bei-jing—Concentration, Composition, Distribution and Sources,” 2004.
[5]
Annual mean PM10 (Particulate matter with diameter of 10 μm or less), by city. World Health organization -
http://www.who.int/phe/health_topics/outdoorair/databases/en/index.html
[6]
J.M. Hao and L.T. Wang, “Im-proving Urban Air Quality in China: Beijing Case Study,” 2005.
[7]
Juan, S., “Census: Population hits 1.37b,” China Daily, 2011.
http://europe.chinadaily.com.cn/china/2011-04/29/content_12418282.htm
[8]
Urban and Rural Areas 2011, United Nations, Department of economic and Social Affairs.
http://esa.un.org/unup/Wallcharts/urban-rural-areas.pdf
[9]
C. Blazo, B. Kura and N. Halageri, “China: The Fastest Growing Economy and the Associated Air Qual-ity Challenges”, Automatic Welding Machinery Associa-tion, 2012.
[10]
J.L.Wang, Y.H. Zhang, M. Shao, et al. “The Chemical Composition and Quantitative Relation-ship between Meteorological Condition and Fine Par-ticles in Beijing,” Jounal of Environmental Sciences, Vol. 16, 2004, pp. 860-864.
[11]
Air Quality Information Transparency Index, Institute of Public & Environmental Affairs -
http://www.ipe.org.cn/upload/report-aqti-en.pdf
[12]
Jacob, S., “Facts of Car Pollution”, 2010.
http://www.livestrong.com/article/156537-facts-of-car-pollution/
[13]
National Geographic News:
http://news.nationalgeographic.com/news/2007/07/070709-china-pollution.html
[14]
Plumer, B., “Air Pollution now Kills more than High cholesterol,” 2012.
http://www.washingtonpost.com/blogs/wonkblog/wp/2012/12/20/air-pollution-now-kills-more-people-than-high-cholesterol/
[15]
Jean-Paul Rodrigue, “The Geography of Transport Systems,” 3rd Edition, 2013.
[16]
Environmental Pollution Cen-ters
[17]
NAAQs for criteria pollutants -
http://epa.gov/air/criteria.html
[18]
EPA-outdoor Air-industry,business, and home: Dry Cleaning Opera-tions - Additional information, available at:
http://www.epa.gov/oaqps001/community/details/drycleaning_addl_info.html#activity2
[19]
EPA- Air Toxics Health Effects Notebook, available at
http://www.epa.gov/ttn/atw/hlthef/tet-ethy.html
[20]
Chemicals used in drycleaning operations report, Bill Linn, Florida Department of Environmental Protection (FDEP), Scott Stupak, North Carolina Superfund Section, pro-vided technical support for database development, Janu-ary 2002, Revised July 2009
[21]
NBC news, available at:
http://www.nbcnews.com/id/ 16816627/ns/us_news-environment/t/calif-air-regulators- ban-dry-cleaning-chemical/#.USQcPB0skuA
[22]
Prof. Paul Roepe, GeorgetownUniversity, available at:
http://www.georgetown.edu/story/dry-cleaning-study.html
