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Sarnia's Chemical Valley and the surrounding area are home to sixty-two facilities and refineries. A widely quoted 2007 Ecojustice Canada report showed those large industrial facilities located within 25 km of Sarnia, Ontario, Canada emitted more than 131,000 tonnes of air pollution in 2005, a toxic load of more than 1,800 kilograms per resident. ==Particulate Matter== In January 2011, the ''Sarnia Observer'' noted "Sarnia had by far the highest levels of fine particulate matter recorded at any of the province's 40 monitoring stations, with significantly sootier air than Windsor, Hamilton, Kingston and Chatham...". In September 2011, the WHO reported --"While Canada ranks third in the world when it comes to air quality, Sarnia was ranked the worst city in the country, with the most particulate matter per cubic metre of air." Pamela Calvert's 2006 documentary on the Aamjiwnaang First Nation, ''The Beloved Community'', details the startling revelation that the Aamjiwmnaang birth rate of males to females is 1 to 2, the lowest live male birth rate in Canada.〔 〕 In addition to the detrimental effect on birth rates among the First Nation peoples of the area, there is also correlation between Sarnia and cancer rates among men—34% higher overall cancer rate than the provincial average, a lung-cancer rate that is 50% higher, a mesothelioma rate five times higher and an asbestosis rate nine times higher . On a positive note, however, the ''Observer'' also stated in the January 2011 article that, "despite having what has been described as the 'dirtiest air in the province,' Sarnia has reduced its nitrogen dioxide, carbon monoxide and sulfur dioxide problems by 30% in the last three years" and "Environment Minister John Wilkinson said it's the first time in the report's 39-year history pollutants have not exceeded provincial monitoring standards. That translated into a record low of three smog advisories and five smog days in 2009."〔 Additionally, a County of Lambton document indicates that in 2005 up to fifty-five percent of ground level ozone and fine particulate matter emissions come from neighboring US facilities. In fact, the 2005 study "Transboundary Air Pollution in Ontario" states that "Long-range transport and transboundary flow of air pollutants play a significant role in air quality considerations on a regional scale." 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Environmental impact of the chemical industry in Sarnia」の詳細全文を読む スポンサード リンク
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