Organic compounds in particulate and gaseous phase collected in the neighbourhood of an industrial complex in Sao Paulo (Brazil)
Organic compounds in particulate and gaseous phase collected in the neighbourhood of an industrial complex in Sao Paulo (Brazil)
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DOI：
10.1007/s11869-017-0531-7
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发表时间：
2018-04-01
影响因子：
5.1
通讯作者：
Vasconcellos, Perola
中科院分区：
文献类型：
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作者：
Caumo, Sofia;Vicente, Ana;Vasconcellos, Perola
圣保罗是南美的一个特大城市，是巴西最大的化石燃料消费国。石化产品在巴西经济和能源矩阵中发挥着重要作用。在使用或加工石油时排放的化合物会影响空气质量，危害人类健康。2015年，在圣保罗大都市区圣安德烈市一个受人为活动影响很大的城市地点，同时采集了颗粒物和气体样本。对样品进行了元素和有机碳、Hopane、正构烷烃、烯烃、多环芳烃及其氧化和硝化衍生物的分析。在多环芳烃中，PUF中菲的浓度最高，PM中以苯并(B)荧菲为主多环芳烃的致癌当量为2.1，硝基多环芳烃的致癌当量为1.2。结果表明，当地活动如车辆和工业活动影响空气质量。
Sao Paulo, a megacity in South America, is the largest consumer of fossil fuels in Brazil. The petrochemical products play an important role in the Brazilian economy and in the energy matrix. The compounds emitted when oil is used or processed can affect air quality and endanger human health. Particulate matter and gaseous samples were collected simultaneously in 2015 at an urban site highly impacted by anthropogenic activities, in the city of Santo Andre, Sao Paulo Metropolitan Area. Samples were analysed for elemental and organic carbon, hopanes, n-alkanes, alkenes polycyclic aromatic hydrocarbons and their oxygenated and nitrated derivatives. Among the polycyclic aromatic hydrocarbon, phenanthrene presented the highest concentration in PUF and benzo(b)fluoranthene was dominant in PM. The carcinogenic equivalents for benzo(a)pyrene were 2.1 for PAH and 1.2 for nitro-PAH. The results showed that local activities as vehicular and industrial activities affected the air quality.