Global S&T Development Trend Analysis Platform of Resources and Environment
Evidence suggests tire and road wear particles present low risk to human health | |
admin | |
2020-03-03 | |
发布年 | 2020 |
语种 | 英语 |
国家 | 国际 |
领域 | 资源环境 |
正文(英文) |
Published: 3 Mar 2020
Type: News
Geneva, 3 March 2020: A risk assessment has suggested tire and road wear particles (TRWP) pose low risk to human health. The purpose of the research sponsored by the Tire Industry Project (TIP) was to understand the potential for risk to human health from exposure to TRWP in the air. It was based on a review of scientific TRWP hazard and exposure assessments – including studies sponsored by TIP – and followed risk assessment guidelines published by the U.S. National Academy of Sciences (NAS) and the U.S. Environmental Protection Agency (EPA). TRWP are debris produced during driving by the necessary friction between tires and road surface; they are a mix of approximately half tire tread material and half road pavement material. Studies have revealed that TRWP are generally sized around 100µm which is in the non-respirable size range. However, a small percentage of TRWP becomes airborne as particulate matter (PM) at size ranges relevant to potential impacts on human health through respiration. The study The risk assessment was based on a review of literature on hazards associated with and exposures to TRWP. From available literature on TRWP hazard, a no-observed-adverse-effect-concentration (NOAEC) for respirable TRWP was calculated and compared to estimated daily exposure to TRWP. Considering both typical and worst-case exposure scenarios, the study found a margin of exposure to TRWP of 400-700 times less than that of the NOAEC. Although there remain uncertainties in the risk assessment stemming from both the reviewed hazard and exposure assessments, based on available research, the current weight of evidence suggests that TRWP presents a low risk to human health. This human health risk assessment joins earlier TIP-sponsored research that suggests TRWP make minor contribution to total PM10 and PM2.5. Why do tires produce particles? A tire is designed to enhance consumer safety and environmental performance under different road and weather conditions. To meet desired performance levels, tires must achieve a fine balance between several, sometimes contradictory, requirements. TRWP are created through abrasion, which is a physical consequence of the tire's grip on the road – driver and passenger safety would be compromised if tires did not grip the road. A growing body of work TIP has supported research into TRWP for more than a decade, making important contributions to the state-of-knowledge on TRWP characteristics and composition. TIP-sponsored studies have found TRWP are unlikely to negatively impact human health and the environment; however, TIP is engaged in continued research to improve scientific understanding of the potential risks associated with TRWP. Understanding the potential health and environmental impacts of TRWP is a TIP priority. TIP has supported peer-reviewed studies including:
|
URL | 查看原文 |
来源平台 | World Business Council for Sustainable Development |
文献类型 | 新闻 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/229232 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | admin. Evidence suggests tire and road wear particles present low risk to human health. 2020. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[admin]的文章 |
百度学术 |
百度学术中相似的文章 |
[admin]的文章 |
必应学术 |
必应学术中相似的文章 |
[admin]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论