Atmospheric Microplastic Pollution in Textile Industrial Areas: Source, Composition, and Health Risk Assessment.

IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Riajul Haq Tanjil, Md Safiqul Islam, Zubayer Islam, Shatabdi Roy, Samiha Nahian, Abdus Salam
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Abstract

Microplastics (MPs) have been increasingly recognized as a pervasive environmental pollutant, with their presence extending to the atmosphere in urban, suburban, and even remote locations. Despite this, the precise sources of atmospheric microplastics remain elusive. Our study focuses on elucidating the contribution of textile industries to atmospheric microplastic pollution by investigating the atmospheric fallout within and around textile industrial areas. Samples of suspended MPs were collected over seven days from indoor and outdoor locations in six textile industries at Dhaka city, Bangladesh. Through examination using fluorescent microscopy and Fourier transform infrared (FTIR) spectroscopy, we identified transparent and black microplastics, predominantly synthetic textile fibres with lengths ranging from 20 to 180 μm. Chemical analysis revealed polymers such as polyester, nylon, regenerated cellulose, and natural fibres among the observed microplastics. Deposition rates inside the textile factory ranged from 109.0 × 103 to 245.3 × 103 MPs/m2/day, while those outside ranged from 19.3 × 103 to 72.7 × 103 MPs/m2/day, indicating a significant contribution of textile operations to atmospheric microplastic contamination. Furthermore, we calculated the exposure of textile workers to microplastics through inhalation and ingestion, with average rates of 8.7 ± 4.3 mg/kg-Bw/year and 97.9 ± 17.5 mg/kg-Bw/year, respectively. These findings emphasize the substantial health risks faced by textile workers due to microplastic exposure. In conclusion, our study provides compelling evidence implicating the textile factory as a noteworthy source of atmospheric microplastic pollution. It is crucial to address this issue in order to reduce environmental contamination and protect the health of those employed in textile production plants.

纺织工业区大气微塑料污染:来源、成分和健康风险评估。
微塑料(MPs)越来越被认为是一种普遍存在的环境污染物,它们的存在延伸到城市、郊区甚至偏远地区的大气中。尽管如此,大气微塑料的确切来源仍然难以捉摸。我们的研究重点是通过调查纺织工业区内和周围的大气沉降物来阐明纺织工业对大气微塑料污染的贡献。在孟加拉国达卡市六个纺织工业的室内和室外地点收集了7天的暂停MPs样本。通过荧光显微镜和傅里叶变换红外(FTIR)光谱检查,我们发现了透明和黑色的微塑料,主要是合成纺织纤维,长度从20到180 μm不等。化学分析显示,在观察到的微塑料中含有聚酯、尼龙、再生纤维素和天然纤维等聚合物。纺织工厂内的沉积速率为109.0 × 103 ~ 245.3 × 103 MPs/m2/d,而工厂外的沉积速率为19.3 × 103 ~ 72.7 × 103 MPs/m2/d,表明纺织生产对大气微塑料污染的贡献较大。此外,我们计算了纺织工人通过吸入和摄入对微塑料的暴露,平均暴露率分别为8.7±4.3 mg/kg-Bw/年和97.9±17.5 mg/kg-Bw/年。这些发现强调了纺织工人因接触微塑料而面临的重大健康风险。总之,我们的研究提供了令人信服的证据,表明纺织厂是大气微塑料污染的一个值得注意的来源。为了减少环境污染和保护纺织生产厂雇员的健康,解决这一问题至关重要。
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来源期刊
CiteScore
5.60
自引率
3.70%
发文量
230
审稿时长
1.7 months
期刊介绍: The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.
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