环境监控与预警
環境鑑控與預警
배경감공여예경
ENVIRONMENTAL MONITORING AND FOREWARNING
2015年
4期
37-42
,共6页
黄深%潘要武%刘国盛%李梅%毕燕茹
黃深%潘要武%劉國盛%李梅%畢燕茹
황심%반요무%류국성%리매%필연여
茂名市%可入肺颗粒物%源解析%单颗粒气溶胶质谱仪
茂名市%可入肺顆粒物%源解析%單顆粒氣溶膠質譜儀
무명시%가입폐과립물%원해석%단과립기용효질보의
Maoming%PM2.5%Source apportionment%Single particle aerosol mass spectrometer
于2014年12月31日—2015年1月12日,利用单颗粒气溶胶质谱仪对茂名市大气中PM2.5进行在线监测和分析。结果表明,茂名市大气颗粒物污染来源分布(颗粒数占比)分别为扬尘6%、工业工艺源10.9%、生物质燃烧14.7%、机动车尾气27.5%、燃煤23.4%、二次无机源7.7%和其他9.9%。空气质量从重度污染转为优良天气过程中,机动车尾气的贡献率基本保持在20%以上,而燃煤占比从28.9%降至12.3%;空气质量从优良转为污染天气的过程中,工业工艺源、二次无机源、生物质燃烧、燃煤的占比增加,而机动车尾气占比不断下降。
于2014年12月31日—2015年1月12日,利用單顆粒氣溶膠質譜儀對茂名市大氣中PM2.5進行在線鑑測和分析。結果錶明,茂名市大氣顆粒物汙染來源分佈(顆粒數佔比)分彆為颺塵6%、工業工藝源10.9%、生物質燃燒14.7%、機動車尾氣27.5%、燃煤23.4%、二次無機源7.7%和其他9.9%。空氣質量從重度汙染轉為優良天氣過程中,機動車尾氣的貢獻率基本保持在20%以上,而燃煤佔比從28.9%降至12.3%;空氣質量從優良轉為汙染天氣的過程中,工業工藝源、二次無機源、生物質燃燒、燃煤的佔比增加,而機動車尾氣佔比不斷下降。
우2014년12월31일—2015년1월12일,이용단과립기용효질보의대무명시대기중PM2.5진행재선감측화분석。결과표명,무명시대기과립물오염래원분포(과립수점비)분별위양진6%、공업공예원10.9%、생물질연소14.7%、궤동차미기27.5%、연매23.4%、이차무궤원7.7%화기타9.9%。공기질량종중도오염전위우량천기과정중,궤동차미기적공헌솔기본보지재20%이상,이연매점비종28.9%강지12.3%;공기질량종우량전위오염천기적과정중,공업공예원、이차무궤원、생물질연소、연매적점비증가,이궤동차미기점비불단하강。
The atmospheric PM2.5 in Maoming was monitored and analyzed using the single particle aerosol mass spectrometer from December 31, 2014 to January 12, 2015.The results showed that the pollution sources of PM2.5 in this city contained 6% of dust particles, 10.9%of particles from industrial processes, 14.7%from biomass burning, 27.5%from vehicle exhaust, 23.4%from coal combustion, 7.7%from secondary inorganic sources, and 9.9% from other sources.When the air quality turned fine from heavily polluted conditions, the motor vehicle exhaust contributed to more than 20%, and the contribution of coal combustion de-creased from 28.9%to 12.3%.When the air condition was changed from fine to heavily polluted, the contribution of industrial processes, secondary inorganic source, biomass combustion, and coal combustion to the production of PM2.5 were increased, while the contribution of the motor vehicle exhaust was decreased.