金奈都会区沿海和内陆地区地下水和饮用水中的氡浓度及其对公众健康的影响。

GROUNDWATER AND DRINKING WATER RADON CONCENTRATIONS IN THE COASTAL AND INTERIOR AREAS OF CHENNAI METRO CITY AND ITS IMPACT ON PUBLIC HEALTH.

机构信息

National Centre for Sustainable Coastal Management, Anna University Campus, Guindy, Chennai 600025, India.

出版信息

Radiat Prot Dosimetry. 2021 Sep 8;195(2):83-91. doi: 10.1093/rpd/ncab117.

Abstract

One hundred forty-eight water samples were collected from in and around Chennai and 222Rn concentrations were measured using radon emanometry method. The average 222Rn concentration was estimated to be 6.88, 2.01, 1.17, 0.19 and 0.10 Bq L-1 for borewell water, openwell water, tank water, metro water and lake water, respectively, which were within the U.S. Environmental Protection Agency's (USEPA) Standard limit of 11.1 Bq L-1 and World Health Organization (WHO) global average 10 Bq L-1. The total effective dose obtained has varied from 0 to 157.57 μSv y-1 with ±10% standard deviation. The mean values were 19.608, 8.092, 4.692, 0.761 and 0.423 μSv y-1 for closed borewell, open well water, tank water, metro water and for lake water, respectively. All these values were below the reference point 0.1 mSv y-1 (100 μSv y-1) set by WHO.

摘要

从钦奈及其周边地区采集了 148 个水样，并使用氡析出法测量了 222Rn 浓度。井水、开口井、水箱水、地铁水和湖水的平均 222Rn 浓度分别估计为 6.88、2.01、1.17、0.19 和 0.10 Bq/L，均在 11.1 Bq/L 的美国环境保护署 (USEPA) 标准限值和 10 Bq/L 的世界卫生组织 (WHO) 全球平均值以内。获得的总有效剂量从 0 到 157.57 μSv/y 不等，标准偏差为 ±10%。封闭井、开口井、水箱水、地铁水和湖水的平均值分别为 19.608、8.092、4.692、0.761 和 0.423 μSv/y。所有这些值均低于世界卫生组织设定的参考点 0.1 mSv/y（100 μSv/y）。