Topsoil heavy metals status and potential risk assessment around the cement factories in Chhatak, Bangladesh
Topsoil heavy metals status and potential risk assessment around the cement factories in Chhatak, Bangladesh
复制标题
孟加拉国恰塔克水泥厂周边表土重金属状况及潜在风险评估
DOI：
10.1007/s10668-022-02269-8
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
M. Howladar
中科院分区：
文献类型：
--
作者：
Debjani Das;M. Hasan;M. Howladar
快速城市化的基础设施建设增加了对水泥的需求。水泥生产的每个阶段都会产生粉尘，这会提高空气中的颗粒物浓度。颗粒物质通过各种过程和土壤质量的恶化而沉积在土壤中。长期接触水泥粉尘可对东道社区造成不利的健康影响。本研究评估了孟加拉国Chhatak水泥生产对环境和健康的影响。测量在顺风和逆风方向的14个地点进行——总共14个表土样本来自附近，一个样本来自远离两个水泥厂的地方。土壤样品分析包括土壤pH、有机质、Zn、Mn、Cu、Pb、Ni、Cd等重金属含量。土壤pH为微酸性至微碱性，有机质含量相对较低。重金属浓度表明土壤中镍含量丰富，而其他重金属，特别是锌、铜和锰含量很低。大多数样品点的Ni吸收量超过标准限值，并以惊人的速度靠近工厂。结果表明，该地区镍污染程度为中度至重度，其他重金属污染程度为未污染至中度。污染因子（Cf）由大到小依次为Ni > Pb > Cd > Cu > Zn > Mn。潜在生态风险评价为低至中等风险。污染程度和空间测绘显示，水泥厂附近0 ~ 500米范围内重金属污染程度较高。在靠近工厂的一些地点，镍对成人和儿童的致癌风险超过了可接受限度（1 × 10 - 6 × 10-4）。因子分析表明，水泥厂附近有害微量元素的来源既有人为来源，也有岩石来源。本研究建议采取补救措施，包括强制使用防护口罩、采取适应性措施处理重金属污染土壤、重新安置居民区。应开展卫生运动，尽量减少水泥生产对环境和人类健康的潜在风险。
Infrastructural development for rapid urbanization has boosted up the demand for cement. Every stage of cement production generates dust which can elevated particulate matter concentrations in the air. Particulate matters are deposited in soil by various processes and deteriorated soil quality. Chronic exposure to cement dust can lead to adverse health effects to the host communities. This study evaluates the environmental and health impacts of cement production in the Chhatak, Bangladesh. The measurements take 14 locations in both downwind and upwind directions—a total of 14 topsoil samples from the close vicinity and one sample collected far from the two cement factories. Soil samples analysis includes soil pH, organic matter, and heavy metal contents like Zn, Mn, Cu, Pb, Ni, and Cd. Soil pH is slightly acidic to hardly alkaline, and organic matter contents are relatively low. Heavy metal concentration depicts that the soils are enriched with Ni, whereas other heavy metals, especially Zn, Cu, and Mn, are very low. Ni absorption exceeded the standard limits at most of sample points and was close to the factories at an alarming rate. TheIgeovalues show that the area is moderate to strongly polluted with Ni and other heavy metals are unpolluted to moderately polluted. The downward order of the contamination factor (Cf) is Ni > Pb > Cd > Cu > Zn > Mn. Assessment of potential ecological risk reflects that the area is of low to moderate risk. The degree of contamination and spatial mapping shows high contamination of heavy metals found within 0 to 500 m nearby the cement factories. The carcinogenic risk of Ni for adults and children exceeded the acceptable limit (1 × 10–6–1 × 10–4) at some points close to the factories. Finally the factor analysis reflects the origin of hazardous trace elements near the cement factories has both anthropogenic and lithogenic sources. This study recommends remedial measures, including compulsory use of protective masks, adaptive measures to treat heavy metal contaminated soils, relocation of residential areas. Health campaigns should implement to minimize the potential risk of cement production on the environment and human health.
DOI：
10.1007/s10668-018-0296-7
发表时间：
2018-11
期刊：
Environment, Development and Sustainability
影响因子：
--
作者：
Aydın Turkyilmaz;M. Çetin;H. Sevik;K. Isinkaralar;Elnaji A. Ahmaida Saleh
通讯作者：
Aydın Turkyilmaz;M. Çetin;H. Sevik;K. Isinkaralar;Elnaji A. Ahmaida Saleh
影响因子：
4.9
作者：
Shrestha, S.;Kazama, F.
通讯作者：
Kazama, F.