环境监测管理与技术
環境鑑測管理與技術
배경감측관리여기술
THE ADMINISTRATION AND TECHNIQUE OF ENVIRONMENTAL MONITORING
2015年
1期
60-62
,共3页
黑碳监测%质量浓度%变化特征%环境空气%杭州市
黑碳鑑測%質量濃度%變化特徵%環境空氣%杭州市
흑탄감측%질량농도%변화특정%배경공기%항주시
Black carbon%Concentration%Variety characteristics%Ambient air%Hangzhou
采用2013年环境空气自动监测数据,分析杭州市空气中黑碳质量浓度的变化规律,并对变化特征的产生原因进行探讨。结果表明:黑碳测定年均值为4.10μg /m3,日变化有明显双峰结构,峰值出现在早7时和晚8时左右;从季节看,黑碳质量浓度冬季高(5.20μg /m3)、夏季低(3.00μg /m3);黑碳质量浓度与 NO2、CO、PM10、PM2.5显著相关,与 O3、风速、气温呈负相关,降水对黑碳的清除作用明显。
採用2013年環境空氣自動鑑測數據,分析杭州市空氣中黑碳質量濃度的變化規律,併對變化特徵的產生原因進行探討。結果錶明:黑碳測定年均值為4.10μg /m3,日變化有明顯雙峰結構,峰值齣現在早7時和晚8時左右;從季節看,黑碳質量濃度鼕季高(5.20μg /m3)、夏季低(3.00μg /m3);黑碳質量濃度與 NO2、CO、PM10、PM2.5顯著相關,與 O3、風速、氣溫呈負相關,降水對黑碳的清除作用明顯。
채용2013년배경공기자동감측수거,분석항주시공기중흑탄질량농도적변화규률,병대변화특정적산생원인진행탐토。결과표명:흑탄측정년균치위4.10μg /m3,일변화유명현쌍봉결구,봉치출현재조7시화만8시좌우;종계절간,흑탄질량농도동계고(5.20μg /m3)、하계저(3.00μg /m3);흑탄질량농도여 NO2、CO、PM10、PM2.5현저상관,여 O3、풍속、기온정부상관,강수대흑탄적청제작용명현。
Based on the automatic monitoring data in 2013,this paper analyzed the variation of black carbon (BC)concentration in the ambient air of Hangzhou,and discussed the factors causing the phenomenon.The re-sults showed that the BC annual average value was 4.10 μg /m3 .It was indicated an obvious double-peak pattern in the diurnal variation of BC level with peak appeared at 20:00 and 7:00.BC concentration in winter (5.20 μg /m3 )was much higher than that in summer(3.00 μg /m3 ).BC concentration was significant associated with NO2 、CO、PM10 and PM2.5 ,but negatively related to O3 ,wind speed and air temperature.Precipitation showed obvious scavenging ability for BC.