Emerging Pollutions From Small-Scale Industries and Chlorophyll-a as a Eutrophication Indicator in Pekalongan Waters Using Hydrodynamic Modeling

IF 1.3 Q4 ENGINEERING, ENVIRONMENTAL

Environmental Quality Management Pub Date : 2025-07-21 DOI:10.1002/tqem.70134

Kunarso Kunarso, Muhammad Zainuri, Shafa Nur Fadhillah, Dwi Haryo Ismunarti, Baskoro Rochaddi, Adzkia Fara Ananda, Anindita Rahma Candrasekar, Muhammad Nur Al Fajrin, Nadien Pratiwi, Erlinda Sofiani Levina, Afroh Amalya, Alisha Khansa Agnadiva, Muhammad Shulhan Jihadi

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引用次数: 0

Abstract

Pekalongan City is a large batik industry center in Indonesia. The large number of industrial activities that produce organic waste form nitrate molecules that dissolve in water and support the growth of phytoplankton, with an increase in chlorophyll-a as an indicator. The organic waste from industries is carried in the river stream (Mrican River, Sengkarang River, Loji River, and Banger) to the sea and influences the fertility of the coastal area. This study aims to determine the content and analyze the distribution of nitrate and chlorophyll-a from 2021 to 2024 as indicators of eutrophication. In situ observations were conducted and analyzed using 2-dimensional hydrodynamic modeling. Hydrodynamic modeling was used to simulate the distribution pattern of nitrate and chlorophyll-a, considering the impact of water currents, tides, and pollutant sources. The results showed that high nitrate contents of 0.0073 mg/L, correlated with high chlorophyll-a contents of 0.0028 mg/L that were located in each river estuary. The correlation analysis showed that the two variables are highly correlated, with r = 0.8, showing that an increase in nitrate contents will likely increase chlorophyll-a. The high level of chlorophyll in the river estuary was categorized using Hagy et al. and defined as mesotrophic, CHL 0.005–0.10 mg/L.

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基于水动力模型的小型工业新污染和叶绿素-a富营养化指标

佩加隆岸市是印度尼西亚的大型蜡染工业中心。大量产生有机废物的工业活动形成硝酸盐分子，硝酸盐分子溶于水，支持浮游植物的生长，叶绿素-a的增加是一个指标。工业产生的有机废物通过河流（美洲河、森卡朗河、洛吉河和班格河）流入大海，影响了沿海地区的肥力。本研究旨在测定2021 - 2024年硝酸盐和叶绿素a的含量并分析其分布，作为富营养化的指标。利用二维水动力学模型进行了现场观测和分析。采用水动力模型模拟了考虑水流、潮汐和污染源影响的硝酸盐和叶绿素a的分布格局。结果表明：各河口硝酸盐含量均为0.0073 mg/L，与叶绿素-a含量均为0.0028 mg/L相关；相关分析表明，两者高度相关，r = 0.8，表明硝酸盐含量的增加可能会导致叶绿素-a的增加。Hagy等对河口高水平叶绿素进行了分类，定义为中营养型，CHL为0.005-0.10 mg/L。

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来源期刊

Environmental Quality Management Environmental Science-Management, Monitoring, Policy and Law

CiteScore

2.20

自引率

0.00%

发文量

期刊介绍： Four times a year, this practical journal shows you how to improve environmental performance and exceed voluntary standards such as ISO 14000. In each issue, you"ll find in-depth articles and the most current case studies of successful environmental quality improvement efforts -- and guidance on how you can apply these goals to your organization. Written by leading industry experts and practitioners, Environmental Quality Management brings you innovative practices in Performance Measurement...Life-Cycle Assessments...Safety Management... Environmental Auditing...ISO 14000 Standards and Certification..."Green Accounting"...Environmental Communication...Sustainable Development Issues...Environmental Benchmarking...Global Environmental Law and Regulation.