中国环境监测
中國環境鑑測
중국배경감측
Environmental Monitoring in China
2015年
5期
67-72
,共6页
牛武江%蒋德海%王丹璐%张有贤
牛武江%蔣德海%王丹璐%張有賢
우무강%장덕해%왕단로%장유현
PM2. 5%金属元素%浓度%分布%兰州
PM2. 5%金屬元素%濃度%分佈%蘭州
PM2. 5%금속원소%농도%분포%란주
PM2. 5%metal elements%concentration%distribution%Lanzhou
为了解兰州市大气PM2.5中金属元素的污染水平和分布,于2013年冬季和春季在兰州市区4个在线监测点进行PM2.5样品采集,利用ICP-MS分析金属元素浓度。结果表明,Pb、B元素含量高于200 ng/m3,V、Fe元素含量在100~200 ng/m3,其余元素含量低于100 ng/m3,其中Pb含量最高,平均含量达到373.8 ng/m3.各监测点元素含量在冬季和春季各有不同,整体上是冬季高于春季。金属元素在兰州市区的空间分布与兰州市工业排放和气象因素有关,工业排放为主导因素。
為瞭解蘭州市大氣PM2.5中金屬元素的汙染水平和分佈,于2013年鼕季和春季在蘭州市區4箇在線鑑測點進行PM2.5樣品採集,利用ICP-MS分析金屬元素濃度。結果錶明,Pb、B元素含量高于200 ng/m3,V、Fe元素含量在100~200 ng/m3,其餘元素含量低于100 ng/m3,其中Pb含量最高,平均含量達到373.8 ng/m3.各鑑測點元素含量在鼕季和春季各有不同,整體上是鼕季高于春季。金屬元素在蘭州市區的空間分佈與蘭州市工業排放和氣象因素有關,工業排放為主導因素。
위료해란주시대기PM2.5중금속원소적오염수평화분포,우2013년동계화춘계재란주시구4개재선감측점진행PM2.5양품채집,이용ICP-MS분석금속원소농도。결과표명,Pb、B원소함량고우200 ng/m3,V、Fe원소함량재100~200 ng/m3,기여원소함량저우100 ng/m3,기중Pb함량최고,평균함량체도373.8 ng/m3.각감측점원소함량재동계화춘계각유불동,정체상시동계고우춘계。금속원소재란주시구적공간분포여란주시공업배방화기상인소유관,공업배방위주도인소。
To understand concentration levels and distributing characteristics of metal elements in fine particles of Lanzhou, samples of pine particles were collected at 4 online monitoring points,and elements of the samples were determined by ICP-MS. The results showed that concentration of Pb、B were above 200ng/m3,V、Fe were from 100 ng/m3 to 200ng/m3,the remaining elements were below 100ng/m3 . Pb possesses the highest detectable amount, the mean concentration is 373. 8ng/m3 . Each element has the different concentration level in winter and spring,and the concentration level is winter higher than spring as a whole. The distributing characteristics of Lanzhou are related to industrial emission ( the dominant factor) and meteorological factors.
