伊宁市大气可吸入颗粒物浓度及与气象因子的相关性研究

Correlation study on atmospheric particular matter concentrations and meteorological factors in Yining

目的了解伊宁市可吸入颗粒物污染状况及与气象因子的相关性,以期为改善空气质量、预防大气污染、制定相关政策提供科学依据。方法 2009-2013年设立三个连续监测点,定点监测,并与气象因子进行相关分析。结果伊宁市秋、冬季节的可吸入颗粒物浓度较高;从月份来看,质量浓度最高的月份集中在1、12月份;可吸入颗粒物与年平均气温、日照时数和平均风速均达到极显著负相关。结论煤烟污染物是造成可吸入颗粒物浓度升高的主要因素,平均气温、日照时数和平均风速对可吸入颗粒物有稀释、扩散的作用。

Objective In order to understand the feature of PM10 pollution condition and the correlation with meteorological factors, so as to improve the air quality, preventing atmospheric pollution and provide scientific evidence for relevant policies.Methods Set up three consecutive fixed-point monitoring from 2009 to 2013 in Yining city, and related analysis with meteorological factors.Results Yining autumn and winter PM10 concentration is higher; From the perspective on the month ,the concentration of PM10 is the highest in January and December, Particulate matter and the annual average temperature, sunshine time and average wind speed achieves very significant negative correlation. Conclusions Soot pollution is the main factor causing elevated PM10 concentration, average temperature, sunshine time and average wind speed has the effect of dilution and diffusion on PM10.