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中文摘要：
利用2006—2014年大气质量监测数据,分析了聊城市大气质量年变化、季节变化和日变化特征。结果发现,聊城市大气质量从2013年开始出现了显著下降,主要是PM2.5、PM10超标,这与聊城大规模棚户区改造和道路建设有关;从季节变化看,聊城大气质量在秋冬季节污染最严重,这与自然气候变化和供暖等人类活动密切相关;从日变化看,上下班高峰时段污染物浓度上升明显。在分析影响聊城市大气质量主要因素的基础上,提出了改善聊城大气质量的建议与对策。
英文摘要：
Based on the air quality datum from 2006 to 2014,annual,seasonal and daily variations of air quality in Liaocheng were studied. It is found that atmosphere quality appeared declined significantly in 2013,and the main pollution factors were PM2. 5,PM10,mainly resulting from the municipal construction. In the aspect of seasonal variations,the air quality conditions were the worst in the autumn and winter,which ascribed natural climate changes and human activities such as heating. In the daily variations,pollutant concentration at rush-hour rose significantly. On the basis of analyzing the main factors influencing atmosphere quality in Liaocheng,the suggestions and countermeasures to improve the atmospheric quality were put forward
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Response of groundwater chemical characteristics to ecological water conveyance in the lower reaches
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