天津市环境空气SO2污染现状及分析

天津环境空气SO2的年均浓度始终超过国家二级标准.年均浓度超标主要因为采暖期SO2浓度过高所至,采暖期SO2平均浓度是非采暖期浓度的3倍左右;在2002-2005年的三个采暖期里,SO2污染逐年加重,导致了年均SO2浓度的逐年升高.天津SO2污染与采暖期增多的低烟囱排放、不利的气象条件有关,也与流动源的隐性排放、能源利用效率低下有关.结合天津经济发展速度、每年煤耗增量、现有环境治理手段来做预测,空气SO2浓度要在未来几年内达到国家二级标准仍是不可能的.

Status Quo of the Pollution of SO2 in Ambient Air in Tianjin and Analysis

The concentration of SO2 in ambient air in Tianjin was higher than the 2nd grade standard of the state from begin- ning to end. Reason was that concentration of SO2 during heating period was very high. That of SO2 during heating period is 3 times higher than non - heating period. In three heating periods in 2002-2005, pollution of SO2 deteriorated year after year. This led to increment of average concentration of yearly SO2. Pollution of SO2 relates to the low chimney used heating and the unfavorable meteorological condition, that of SO2 relates to concealment of flow source and the utilization ratio of energy. Thinking about rate of the economic development and the increment of yearly coal consumption and existing method of environmental improvement, The artiste forecasts that it will yet be impossible that the content of SO2 in Tianjin air achieves the standard of the state in futuristic some years.