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| 平顶山市大气PM10、PM2.5 污染调查 |
| PollutantsInvestigation ofPM 10 and PM 2 . 5 in Pingdingshan AmbientAir |
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| DOI： |
| 中文关键词: PM 10 PM 2.5 微量元素 富集 平顶山市 |
| 英文关键词: PM 10 PM 2.5 Trace elemen t Concentration Pingdingshan city |
| 基金项目:河南省教育厅基金资助项目 (20021100263) |
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| 摘要点击次数: 1950 |
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| 中文摘要: |
| 于2003年12月—2004年11月对平顶山市城区大气PM 10 、 PM 2.5 污染进行了调查。结果表明,2004年大气PM 10 、 PM 2.5 质量浓度分别为0. 031 m g/m 3 ~ 0.862 m g/m 3 、0. 019 mg/m 3 ~ 0. 438 mg/m 3 ; 年均值分别为0.174 m g/m 3 、0.114 mg/m 3 , 超标0.74 倍、6.60 倍。PM 10 、PM 2.5 污染的季节变化趋势是以冬季、春季高, 秋季次之, 夏季最低, 细颗粒 (PM 2. |
| 英文摘要: |
| InvestigationofpollutionlevelsofairbornePM 10 and PM 2.5 in Pingdingshan City werecarried out from December2003 to November 2004. The resultindicated thatthe range ofPM 10 concentration are from 0.031 mg/m3 to 0.862 mg/m 3 and PM 2.5 from 0.019 mg/m 3 to 0.438 mg/m 3 during 2004, the annualaveragePM 10 concentration 0.174mg/m 3 and PM 2.5 0.114 mg/m 3 .The concentration ofPM 10 wasoverthe Chinese airqualitystandard 0.74 timesand TheoneofPM 2.5 overtheAmerican airqualitystandard 6.60times. ThePM 10 and PM 2.5 pollution levelschangedwithseasons, whichtheconcentrationsofthem inthewinterandspring were high, theautumn nex,t the summerlowes.t The PM 2. 5 accounted approximately 65% inthe PM 10 . The maintrace elementsintheparticleswere As, Pb, Cd, S, Zn,Cu, M n, Ca, andthe elements easily concentrated inPM 2.5 . The main pollution sourcesofthe particlescome from burning coa,l automobile exhaus,t the cityinfrastructure construction and nonferrous metalssm elting. |
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