从印度东部的一个工业走廊的道路灰尘中潜在有毒元素的来源分配和人类暴露途径
Apurba Koley1, Chandrani Sinha Roy1, Niladri Das2
1Department of Environmental Studies, Siksha-Bhavana (Institute of Science), Visva-Bharati, Santiniketan, West Bengal, 731235, India.
Environmental geochemistry and health
|November 18, 2025
概括
杜尔加普尔工业区的潜在有毒元素 (PTEs) 路边灰尘由于工业和车辆排放造成的健康风险,尤其是儿童. 高水平的,和表明需要注意的严重污染.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 地质化学 地质化学
背景情况:
- 像达尔加普尔工业区 (DIA) 这样的工业化地区面临着道路边尘埃中潜在有毒元素 (PTEs) 的挑战.
- 了解PTE的空间分布和来源对于评估环境和健康影响至关重要.
研究的目的:
- 评估DIA路边尘埃中PTE的度,空间分布,来源分配和健康风险.
- 确定污染物暴露途径和相关的健康风险,对弱势群体,特别是儿童.
主要方法:
- 采集了42个粉尘样本,使用形和四分之一的方法.
- 分析了PTE度 (Fe, Mn, Zn, Cu, Pb, Ni, Co, As, Cd, Cr) 并进行了地质积累,丰富和污染指数计算.
- 利用扫描电子显微镜进行形态分析和统计方法 (皮尔森相关性,PCA,等级集群分析) 来识别源.
主要成果:
- 平均PTE度按照以下顺序进行:Fe > Mn > Cr > Zn > Cu > Pb > Ni > Co > As > Cd.
- 观察到Cd,Cr和As的显著丰富,以及Cd,Cr,As,Mn,Zn和Pb的总体污染负载.
- 工业排放和车辆来源被确定为主要贡献者,食用是儿童的主要暴露途径.
结论:
- 在DIA的路边灰尘中,有相当大的PTE污染,对儿童造成相当大的健康风险,特别是由于和的暴露.
- 人为来源,包括交通排放和工业过程,是PTE污染的主要原因.
- 需要有效的战略来缓解PTE污染,并保护工业化城市地区的公共卫生.
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