Hits:19132016-05-25 08:21:07
Steel industry and various types of dust "contribution" 70% PM2.5 of atmospheric environment quality in Jinan City changed throughout 2010, four major pollutants in the environment in addition to sulfur dioxide concentration in the atmosphere dropped significantly, although the remaining three indicators show a declining trend, but the decline is slow. "The municipal environment monitoring center, experts told reporters. Nitrogen dioxide and PM10, PM2.5 concentrations declined slowly, mainly because of the complex impact of atmospheric particulate pollution sources, also embodies the inevitable problems of urbanization, such as city construction dust pollution, motor vehicle exhaust pollution and the life such as home decoration, cooking oil fume pollution. Fan Guolan said the current particulate matter pollution has become the primary problem of air pollution in Jinan. In 2015, fine particulate matter (PM2.5) as the primary pollutants of up, to 174 days, 47.7%, ozone (O3) as a primary pollutant is 93 days, 25.5%; respirable particulate matter (PM10) as a primary pollutant is 90 days, 24.7%. As a primary pollutant particles accounted for 72.4% of the total number of days. At the event, Dr environmental monitoring central station of Jinan City Fan Guolan said 2015 Jinan urban haze 252 days, total monitoring days: 69%. However, concentrations of pollutants, Jinan air pollutants concentrations show a downward trend in 3 years. From 2013 to 2015, Jinan in the four major pollutants, respirable particulate matter, fine particulate matter, sulphur dioxide concentrations are declining, concentrations of nitrogen dioxide in 2014, 2015 and balanced than decreased in 2013. From 2013, 2015 respirable particulate matter concentrations decreased 15.7%, fine particle 19.4%, 44.1% drop of sulfur dioxide, nitrogen dioxide, 10.2%. In recent years, Jinan smog is aggravated or reduced? Jinan smog comes from what? Recently, the municipal environmental protection Bureau to host the 2016 public activities, these questions are answered. Reporters learned that since 2013 Jinan concentrations of major pollutants has decreased, but the PM2.5 particulate matter concentrations declined slowly. Inventory data from the Environmental Protection Department first released the source, seamless steel pipe industry caused the city's 40% PM2.5, road dust, construction dust and yard also caused 30% such as PM2.5.
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