大连市酸雨的变化趋势及来源简析 |
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作者姓名: | 王日东 苏静 |
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作者单位: | 大连市环境监测中心,辽宁大连116023 |
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摘 要: | “十一五”期间大连市的酸雨污染呈波动趋势,2009年的酸雨污染最为严重,酸雨频率达到40.3%,pH均值4.84,属于中酸雨污染。大连市酸雨的来源受外来地区输送的影响较大,大连市本地源排放对硫和氮的湿沉降的贡献仅在10—20%之间;外来源中,山东排放的贡献占30~40%,辽宁其他区域的贡献10%左右,同时日本、朝鲜和韩...
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关 键 词: | 酸雨 变化趋势 来源 |
Analysis in the Variational Trend and Sources of Acid Rain in Dalian |
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Authors: | Wang Ridong Su Jing |
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Institution: | Wang Ridong Su Jing( Dalian Environmental Monitoring Center, Dalian Liaoning province ! 16023 ) |
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Abstract: | The acid rain pollution of Dalian presents to fluctuant trend during the eleventh five - year plan. The acid rain pollution Was the most serious in 2009. The frequency of the acid rain achieved 40. 3% and the pH value was 4.84 (medium acid rain pollution) . Acid rain in Dalian was significantly affected by external sources via transportation. The emissions from local sources only contributed to 10 -20% of wet deposition of sulfur and nitrogen. Among all external sources, emissions from Shandong contributed to 30 -40%, other regions in Liaoning only accounted for about 10%, and effect of emission in neighbor countries ( such as Japan,Noah Korea and South Korea) should not be neglected. |
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Keywords: | Acid rain Fluctuant trend Source |
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