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Relationship of particulate matter and ozone with 3-nitrotyrosine in the atmosphere

机译:大气中颗粒物和臭氧与3-硝基酪氨酸的关系

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摘要

The prevalence of allergic diseases has increased in the past few decades. Bio-aerosol proteins and their chemical modifications, such as 3-nitrotyrosine (3-NT), in the atmosphere have been attracting attention due to their promotive effects on allergies. 3-NT is generated from the amino acid, tyrosine, through a reaction with ozone (O-3) and nitrogen dioxide (NO2). However, the underlying mechanisms have not yet been elucidated in detail. Therefore, we measured 3-NT and evaluated the relationships among 3-NT and various pollutants such as sulfur dioxide (SO2), NOx (NO + NO2), ozone (O-3), PM7, total suspended particulate matter (TSP) containing proteins, humidity, and temperature. 3-NT positively correlated with O-3, SO2, humidity, and temperature, and negatively correlated with NOx. A multiple regression analysis showed that 3-NT positively associated with O-3, humidity, and PM7. O-3 positively associated with 3-NT and PM7, and negatively associated with NOx and humidity. These results suggest that 3-NT is generated from PM proteins through a reaction with O-3 under high humidity conditions, and that the measurement of 3-NT is important and useful for the research of O-3. (C) 2017 Elsevier Ltd. All rights reserved.
机译:在过去的几十年中,过敏性疾病的流行有所增加。大气中的生物气溶胶蛋白及其化学修饰物(例如3-硝基酪氨酸(3-NT))由于对过敏的促进作用而受到关注。通过与臭氧(O-3)和二氧化氮(NO2)的反应,由氨基酸酪氨酸生成3-NT。但是,尚未详细阐明其基本机制。因此,我们测量了3-NT并评估了3-NT与各种污染物(如二氧化硫(SO2),NOx(NO + NO2),臭氧(O-3),PM7,总悬浮颗粒物(TSP))之间的关系。蛋白质,湿度和温度。 3-NT与O-3,SO2,湿度和温度呈正相关,与NOx呈负相关。多元回归分析表明3-NT与O-3,湿度和PM7正相关。 O-3与3-NT和PM7正相关,与NOx和湿度负相关。这些结果表明3-NT是由PM蛋白通过在高湿度条件下与O-3反应而产生的,并且3-NT的测定对于O-3的研究是重要和有用的。 (C)2017 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Environmental Pollution》 |2018年第5期|948-952|共5页
  • 作者单位

    Okayama Univ, Dept Publ Hlth, Grad Sch Med Dent & Pharmaceut Sci, Kita Ku, 2-5-1 Shikata Cho, Okayama, Japan;

    Okayama Univ, Dept Publ Hlth, Grad Sch Med Dent & Pharmaceut Sci, Kita Ku, 2-5-1 Shikata Cho, Okayama, Japan;

    Okayama Univ, Dept Publ Hlth, Grad Sch Med Dent & Pharmaceut Sci, Kita Ku, 2-5-1 Shikata Cho, Okayama, Japan;

    Okayama Univ, Dept Publ Hlth, Grad Sch Med Dent & Pharmaceut Sci, Kita Ku, 2-5-1 Shikata Cho, Okayama, Japan;

  • 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

    Ozone; Particulate matter; 3-Nitrotyrosine; NOx;

    机译:臭氧;颗粒物;3-硝基酪氨酸;NOx;
  • 入库时间 2022-08-17 13:25:47

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