Distribution characteristics of atmospheric VOCs pollution in Yueyang region based on navigation monitoring
The SPI-MS 2000 on-line navigation monitoring system was used to monitor and analyze 11 areas in Yueyang area for 22 days.The results showed that the average ΣVOCs concentration in Yueyang area was 174μg/m3,and the components of VOCs were aromatic hydrocarbons,olefin,Oxygen and nitrogenous hydrocarbons,alkane,or-ganic sulfur and halogenated hydrocarbons in descending order.A total of 46 abnormal points were found in the navi-gation area,among which oil and gas volatilization at gas stations was common.In addition,there were many abnor-mal points in Yunxi area,ΣVOCs peak concentration is high,which is greatly influenced by the chemical industry.In-dustries that contribute significantly to ozone formation are mainly coatings,ink manufacturing and petrochemicals.Problem enterprises and pollution degree vary greatly among administrative regions,and targeted control can be car-ried out according to pollution characteristics.
CruiseTime-of-flight mass spectrometryVolatile organic compoundsOzone formation potential
万方数据
维普
