| 引用本文： |
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陆晓艳,黄增,陈蓓,潘秋玲,潘润西.“十二五”期间广西酸雨污染变化特征分析[J].广西科学,2019,26(3):341-346. [点击复制]
- LU Xiaoyan,HUANG Zeng,CHEN Bei,PAN Qiuling,PAN Runxi.Analysis about Variation Characteristics of Acid Rain Pollution in Guangxi during the Twelfth Five-Year Plan[J].Guangxi Sciences,2019,26(3):341-346. [点击复制]
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| 摘要: |
| 为了解"十二五"期间广西酸雨污染特征及变化趋势情况，利用"十二五"期间广西全区14个市的大气降水监测数据，通过pH值、酸雨频率、降水离子组分3方面数据统计并分析其变化趋势。"十二五"期间广西酸雨污染主要为弱酸性酸雨，其次为酸性酸雨，重酸性酸雨污染占比不足20%，较少有严重酸性酸雨；降水酸度总体呈减弱趋势，酸雨频率呈波动下降趋势，5年期间城市酸雨污染整体呈减轻趋势；酸雨区域主要集中在桂北、桂西部地区，东南部由酸雨区域变为非酸雨区域，酸雨区域面积有所减少；降水中SO42-离子当量浓度逐年下降，NO3-离子当量浓度呈上升趋势，SO42-/NO3-的比值呈现显著下降趋势，广西酸雨污染特征由硫酸型向硫酸与硝酸混合型酸雨过渡。广西的酸雨污染略有减轻趋势，这与广西近年来的环境治理取得的成效有关。 |
| 关键词: 酸雨 pH值 酸雨频率 硫酸根离子 硝酸根离子 广西 |
| DOI：10.13656/j.cnki.gxkx.20190621.001 |
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| 基金项目:广西重点研发计划项目（桂科AB16380292，AB16380340）资助。 |
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| Analysis about Variation Characteristics of Acid Rain Pollution in Guangxi during the Twelfth Five-Year Plan |
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LU Xiaoyan, HUANG Zeng, CHEN Bei, PAN Qiuling, PAN Runxi
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| (Guangxi Environmental Monitoring Center, Nanning, Guangxi, 530028, China) |
| Abstract: |
| In order to understand the characteristics and trends of acid rain pollution in Guangxi during the Twelfth Five-Year Plan period, using the monitoring data of atmospheric precipitation in 14 cities in Guangxi during the Twelfth Five-Year Plan period, the change trend were analyzed by three data:pH value, acid rain frequency and precipitation ion composition. The results showed during the Twelfth Five-Year Plan period, the acid rain pollution in Guangxi was mainly weak acid rain, secondly was the acid rain. The proportion of heavy acid rain pollution was less than 20%, and there was less severe acid rain. The acidity of precipitation generally showed a weakening trend, and the frequency of acid rain showed a fluctuating downward trend. During the five-year period, the overall acid rain pollution in the city showed a trend of reduction. The acid rain area was mainly concentrated in the north of Guangxi and the western part of Guangxi. The southeastern part was transformed from acid rain area to non-acid rain area, and the area of acid rain area was reduced. The concentration of SO42- ion equivalent in precipitation decreased year by year, the concentration of NO3- ion equivalent showed an upward trend, and the ratio of SO42-/NO3- showed a significant downward trend. The characteristics of acid rain pollution in Guangxi were changed from sulfuric acid type to mixed acid rain of sulfuric acid and nitric acid. The acid rain pollution in Guangxi has reduced slightly, which is related to the effectiveness of environmental governance in Guangxi in recent years. |
| Key words: acid rain pH value acid rain frequency sulfite nitrate Guangxi |
