Birmingham and Sandwell Borough hazes of the 1970s and 2000s


 * 1) UK tabloid press in the late 1980s and early 1990s.
 * 2) http://www.coldwarhistoryque.com./airchoke.
 * 3) https://books.google.at/books?id=kdfx5_sC1G4C&lpg=PA755&pg=PA755#v=onepage&q&f=false
 * 4) http://www.telegraph.co.uk/science/2017/01/24/air-pollution-london-passes-levels-beijingand-wood-burners-making/
 * 5) https://en.wikipedia.org/wiki/NOx
 * 6) https://bhamnow.com/2017/08/17/smoke-city-birmingham/
 * 7) https://www.birminghammail.co.uk/news/midlands-news/future-new-birmingham-railway-stations-15202483
 * 8) https://www.birminghammail.co.uk/news/midlands-news/birmingham-air-pollution-this-public-14786176
 * 9) https://www.birminghammail.co.uk/news/midlands-news/birmingham-city-centre-congestion-charge-14785035
 * 10) https://www.birminghammail.co.uk/news/midlands-news/worst-polluted-streets-birmingham-14815169
 * 11) https://www.birminghammail.co.uk/news/midlands-news/birminghams-new-clean-air-zone-14802158
 * 12) https://www.birminghammail.co.uk/news/midlands-news/birmingham-air-pollution-this-public-14786176
 * 13) https://www.birminghammail.co.uk/news/midlands-news/birminghams-air-bad-european-union-12608949
 * 14) https://www.birminghammail.co.uk/news/midlands-news/birmingham-ranks-whos-most-polluted-14612983
 * 15) https://www.birmingham.gov.uk/info/20076/pollution/1276/air_pollution
 * 16) https://www.birminghammail.co.uk/news/midlands-news/revealed-birminghams-worst-air-pollution-7656074
 * 17) https://bhamnow.com/2017/08/17/smoke-city-birmingham/
 * 18) https://www.mnn.com/health/healthy-spaces/photos/7-us-cities-with-the-worst-air-pollution/birmingham-ala
 * 19) https://www.cbsnews.com/pictures/air-pollution-worst-us-cities-2018/4/
 * 20) https://bhamnow.com/2017/08/23/birmingham-air-pollution/
 * 21) http://www.sciencedirect.com/science/article/pii/S0378382015301429
 * 22) https://books.google.at/books?id=kdfx5_sC1G4C&lpg=PA755&pg=PA755#v=onepage&q&f=false
 * 23) http://mygreenairlogg.blogspot.com/2008/01/smokyskys.html

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