孟加拉国沿海生态系统环境健康评估的综合新方法

Q2 Environmental Science Environmental Challenges Pub Date : 2024-09-25 DOI:10.1016/j.envc.2024.101019
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引用次数: 0

摘要

孟加拉国沿海地区位于孟加拉湾沿岸,是一个易受影响的低洼地区,面临着多重环境挑战。水质评估采用了各种物理化学参数。CCME 水质指数显示,西部沿海为 70.13(尚可),中部沿海为 42.2(较差),东部沿海为 64.6(一般)。环境质量指数也证实了这一结果,西部海岸为(良好),东部海岸为(尚可),中部海岸为(较差)。分析参数有助于深入了解污染程度、水体透明度、营养动态以及沿海生态系统的总体健康状况。此外,研究还深入探讨了重金属浓度,包括砷 (As)、镉 (Cd)、铬 (Cr)、铜 (Cu)、铁 (Fe)、汞 (Hg)、锰 (Mn)、铅 (Pb) 和锌 (Zn)。与其他两个地区相比,东部沿海地区的污染程度较高,凸显了对环境和人类健康的潜在风险。本研究旨在评估该地区的环境健康风险和水质,引入了一种新的环境健康风险指数(EHRI)来衡量整体环境健康状况。根据环境健康风险指数,西部海岸的环境状况良好(2.25),中部海岸(3.625)和东部海岸(3.5)的环境状况不佳,东部海岸受到的影响相对较小。根据这些调查结果,提出了若干建议,包括实施气候变化适应战略(如海岸保护措施)、倡导可持续的土地利用方式以及加强水质监测和管理规程。
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An integrated novel approach to the environmental health assessment of Bangladesh's coastal ecosystems
The coastal expanse of Bangladesh, situated along the Bay of Bengal, is a susceptible and low-lying area grappling with multiple environmental challenges. Various physicochemical parameters were employed in the assessment of water quality. The CCME Water Quality Index indicated the western coast as 70.13 (Fair), the Central coast as 42.2 (Poor), and the Eastern Coast as 64.6 (Marginal). This outcome was corroborated by the Environmental Quality Index, with the Western Coast ranked as (Good), the Eastern Coast as (Fair), and the Central Coast as (Poor). The analyzed parameters provided insights into pollution levels, water clarity, nutrient dynamics, and the overall health of the coastal ecosystems. Additionally, the study delved into heavy metal concentrations, encompassing arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), mercury (Hg), manganese (Mn), lead (Pb), and zinc (Zn). The eastern coast exhibited higher contamination compared to the other two regions, emphasizing potential risks to both the environment and human health. This study aimed to evaluate the environmental health risks and water quality in this region, introducing a novel Environmental Health Risk Index (EHRI) to gauge the overall environmental health conditions. According to the EHRI, the Western Coast exhibited good conditions (2.25), while the Central (3.625) and Eastern (3.5) Coasts were classified as not bad, with the Eastern Coast experiencing comparatively lesser impact. Based on these findings, several recommendations emerge, including the implementation of climate change adaptation strategies such as coastal protection measures, the advocacy of sustainable land use practices, and the enhancement of monitoring and management protocols for water quality.
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来源期刊
Environmental Challenges
Environmental Challenges Environmental Science-Environmental Engineering
CiteScore
8.00
自引率
0.00%
发文量
249
审稿时长
8 weeks
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