User:Seniorscientist1954/sandbox

Regulation[edit]

Due to the health effects of particulate matter, various governments have created regulations both for the emissions allowed from certain types of pollution sources (motor vehicles, industrial emissions etc.) and for the ambient concentration of particulates. Many urban areas in the U.S. and Europe still frequently violate the particulate standards, though urban air on these continents has become cleaner, on average, with respect to particulates over the last quarter of the 20th century.[citation needed] Much of the developing world, especially Asia, exceed standards by such a wide margin that even brief visits to these places may be unhealthy. [50A] Citation as follows: http://coe.mse.ac.in/eercrep/fullrep/ehe/EHE_FR_Sushil_Kumar.pdf A Study of Environmental Exposure to PAHs among Economically Underprivileged Population of Urban Areas of Uttar Pradesh; P Sushil Kumar, Industrial Toxicology Research Centre, Lucknow in a report to Indira Gandhi Institute for Development Research and Min of Env Health, India and WORLD BANK