Temperature modifies the association between air pollution and respiratory disease hospital admissions in an industrial area of South Africa: The Vaal Triangle Air Pollution Priority Area

Q3 Environmental Science

Clean Air Journal Pub Date : 2022-12-22 DOI:10.17159/caj/2022/32/2.14588

Nandi Mwase, B. Olutola, J. Wichmann

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引用次数: 1

Abstract

Background: Epidemiological studies reported independent effects of air pollution and temperature on health, yet these twoexposures are often treated as separate risk factors. Few studies investigated temperature effect modification on the health effects ofair pollution in Africa and none examined the effects of black carbon on respiratory disease (RD) hospitalisations. The aim of this studywas to determine whether the association between RD hospitalisations and air pollution in the Vaal Triangle Air Pollution Priority Areawas modified by apparent temperature (Tapp) during January 2013 to February 2020. Methods: RD admission data (ICD10 J00-J99) were obtained from two hospitals located in Vanderbijlpark and Vereeniging. AmbientPM10, PM2.5, BC, NO2, SO2 and O3, temperature and relative humidity data were obtained from six monitoring stations. A case-crossover epidemiological study design was applied. Lag0-1 was investigated, i.e. the average air pollutant level on the day and the day before hospitalisation. Models were adjusted for public holidays and Tapp. Effect modification was investigated by stratifying days into low, moderate and high Tapp days. Susceptibility by age and sex was investigated. Results: Of the 43 386 hospital admissions, 50.9% (n=22 092) were women and 51.4% (n=22 304) were 0-14-year olds. Air pollutantsexceeded the daily WHO air quality guidelines generally on more than 50% of the days. In general, moderate Tapp worsened the effects of PM2.5, PM10, SO2 and BC, whilst the effects of NO2 and O3 were most pronounced on days with high Tapp. The elderly and females were more vulnerable to air pollution, especially on days with moderate Tapp. Conclusions: These results indicate that the risk of RD hospitalisation due to ambient air pollution exposure is different on low,moderate and high Tapp days in Vanderbijlpark and Vereeniging.

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温度改变了南非一个工业区空气污染与呼吸系统疾病住院率之间的关系:瓦尔三角空气污染优先区

背景：流行病学研究报告了空气污染和温度对健康的独立影响，但这两种暴露通常被视为单独的风险因素。很少有研究调查温度变化对非洲空气污染健康影响的影响，也没有研究黑碳对呼吸道疾病（RD）住院的影响。本研究的目的是确定2013年1月至2020年2月期间，瓦尔三角空气污染优先区的RD住院与空气污染之间的关系是否受到表观温度（Tapp）的影响。环境PM10、PM2.5、BC、NO2、SO2和O3、温度和相对湿度数据来自六个监测站。采用病例交叉流行病学研究设计。调查了滞后0-1，即住院当天和住院前一天的平均空气污染物水平。模型针对公共假日和Tapp进行了调整。通过将天数分为低、中等和高Tapp天数来研究效果改良。对年龄和性别的易感性进行了调查。结果：在43886名住院患者中，50.9%（n=22092）为女性，51.4%（n=22304）为0-14岁。空气污染者通常在50%以上的日子里遵守世界卫生组织每日空气质量指南。一般来说，中度Tapp会加重PM2.5、PM10、SO2和BC的影响，而NO2和O3的影响在Tapp高的日子最为明显。老年人和女性更容易受到空气污染的影响，尤其是在Tapp中等的日子。结论：这些结果表明，在Vanderbijlpark和Vereeniging，低、中、高Tapp日因暴露于环境空气污染而导致RD住院的风险不同。

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来源期刊

Clean Air Journal Environmental Science-Management, Monitoring, Policy and Law

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

8 weeks

期刊介绍： Clean Air Journal is the official publication of the National Association for Clean Air, a not-for-profit organisation. Clean Air Journal is a peer-reviewed journal for those interested in air quality, air quality management, and the impacts of air pollution relevant to Africa. The focus of the journal includes, but is not limited to: Impacts of human activities and natural processes on ambient air quality Air quality and climate change linkages Air pollution mitigation technologies and applications Matters of public policy regarding air quality management Measurement and analysis of ambient and indoor air pollution Atmospheric modelling application and development Atmospheric emissions Other topics on atmospheric physics or chemistry with particular relevance to Africa The scope of the journal is broad, but the core theme of the journal is air quality in Africa.