...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Environmental Science and Health >Temporal distribution of fine participates (PM_(2.5), PM_(10)), potentially toxic metals, PAHs and Metal-bound carcinogenic risk in the population of Lucknow City, India
【24h】

Temporal distribution of fine participates (PM_(2.5), PM_(10)), potentially toxic metals, PAHs and Metal-bound carcinogenic risk in the population of Lucknow City, India

机译：印度勒克瑙市人口的精细成分（PM_（2.5），PM_（10）），潜在有毒金属，多环芳烃和金属结合致癌风险的时间分布

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Ubiquitous fine particulates can readily be bound to toxic metals and polycyclic aromatic hydrocarbons and are considered to be a great threat to human health. The purpose of this study was to assess the magnitude of air pollution risks to public health by determining four crucial parameters- inhalable particulates, metals in particulates and PAHs which are associated with PM_(10) in the air environment of Lucknow, India during 2007-09. The values of PM_(10) and PM_(2.5) ranged between 102.3-240.5 and 28.0-196.9 μg/m~3 whilst the average PM_(10) was 1.7 times and PM_(2.5) was 1.5 times higher than their respective NAAQS of 100 and 60 μg/m~3 respectively. The estimated relative death rate and hospital admissions for each increase in the PM_(10) levels of 10 μg/m~3 ranged from 1.5-8% and from 3.9-8.0% (as per APHEA2 1990) respectively in persons ＞ 65 yrs. Among the locations; AQs_(-1), AQs_(-2), and AQs_(-3) (with diversified activities and heavy traffic) recorded higher concentrations of both the particulate fractions than the AQs_(-4) (residential area with low traffic). The average concentrations of Fe, Pb, Ni, Cu, Cr, Cd in PM_(10) were 219.4,40.6, 35.1,27.3, 22.2 and 16.2 ng/m~3 and that in PM_(2.5) were 54.3, 33.9, 38.5, 29.4, 8.4, and 1.17 ng/m~3 respectively. Regression analysis revealed that correlation of metals with PM_(2.5) was stronger than PM_(10). The ratio of metals adsorbed on surface of particles (PM_(2.5):PM-(10) reveals that PM_(2.5) has more affinity for Ni, Cu and Pb and PM_(10) for Cd, Fe and Cr. Health risk due to carcinogenic metals bound to respirable particulates was predicted by estimating excess cancer risk (ECR). The highest ECR value was estimated for Cr, 266.70 × 10~(-6), which was associated with PM10 and 100.92 × 10~(-6) which was associated with PM_(2.5), whereas lead has the lowest ECR value. Amongst PAHs, benzo(a)pyrene (51.96±19.71 ng/m~3) was maximum in PM_(10) samples. Maximum concentrations of PM_(10), PM_(2.5), metals and PAHs were detected during winter, and the lowest was during monsoon. The higher prevalence of diseases among the population may be due to high concentration of particulates coated with toxic metals and PAHs present in air environment.
机译：无处不在的细小颗粒很容易与有毒金属和多环芳烃结合，被认为对人类健康构成巨大威胁。这项研究的目的是通过确定四个可吸入颗粒物，颗粒中的金属和多环芳烃的关键参数来评估空气污染对公众健康的严重程度，这些参数与印度勒克瑙的空气环境中的PM_（10）在2007- 09。 PM_（10）和PM_（2.5）的值介于102.3-240.5和28.0-196.9μg/ m〜3之间，而平均PM_（10）是其各自NAAQS的1.7倍和PM_（2.5）的1.5倍。 100和60μg/ m〜3。 ＞ 65岁人群中PM_（10）浓度每升高10μg/ m〜3时，相对死亡率和住院率估计分别为1.5-8％和3.9-8.0％（根据APHEA2 1990）。地点之间； AQs _（-1），AQs _（-2）和AQs _（-3）（活动多样化且交通繁忙）记录到的两种颗粒物的浓度均高于AQs _（-4）（交通繁忙的居民区）。 PM_（10）中Fe，Pb，Ni，Cu，Cr，Cd的平均浓度为219.4、40.6、35.1,27.3、22.2和16.2 ng / m〜3，而PM_（2.5）中的平均浓度为54.3、33.9、38.5 ，29.4、8.4和1.17 ng / m〜3。回归分析表明，金属与PM_（2.5）的相关性强于PM_（10）。颗粒表面吸附金属的比例（PM_（2.5）：PM-（10）显示PM_（2.5）对Ni，Cu和Pb的亲和力更大，而PM_（10）对Cd，Fe和Cr的亲和力更大。通过估计过量的癌症风险（ECR）预测与可吸入颗粒物结合的致癌金属的含量，其中Cr的最高ECR值估计为266.70×10〜（-6），与PM10和100.92×10〜（-6）相关与PM_（2.5）有关，而铅的ECR值最低；在PAHs中，PM_（10）样品中苯并（a）re（51.96±19.71 ng / m〜3）最大。 ），PM_（2.5），金属和多环芳烃在冬季被检测到，而最低的是在季风期间，该人群中疾病的患病率较高可能是由于空气环境中存在高浓度的被有毒金属和多环芳烃所覆盖的微粒所致。

著录项

  • 来源
    《Journal of Environmental Science and Health》 |2013年第8期|730-745|共16页
  • 作者

    P. PANDEY; D.K. PATEL; A.H. KHAN; S.C. BARMAN; R.C. MURTHY; G.C. KISKU;

  • 作者单位

    Environmental Monitoring Division, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow, Uttar Pradesh, India;

    Analytical Chemistry Division, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow, Uttar Pradesh, India;

    Environmental Monitoring Division, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow, Uttar Pradesh, India;

    Environmental Monitoring Division, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow, Uttar Pradesh, India;

    Analytical Chemistry Division, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow, Uttar Pradesh, India;

    Environmental Monitoring Division, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Fine particulates; metal; PAHs; health risk;

    机译：细颗粒;金属;多环芳烃;健康风险;

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号