Study of the carrying capacity of the Brantas River to the Porong River based on the distribution of atrazine pollutant from agricultural land with the application of a geographical information system (GIS)

Fitrian, Nurina and Khairunnisa, Diah Aldina and Dermawan, Bariq Athilla and Wahyudianto, Febri Eko and Radin Mohamed, Radin Maya Saphira and Soedjono, Eddy Setiadi and Dianbudiyanto, Wahid and Isnadina, Dwi Ratri Mitha (2025) Study of the carrying capacity of the Brantas River to the Porong River based on the distribution of atrazine pollutant from agricultural land with the application of a geographical information system (GIS). Modeling Earth Systems and Environment, 11 (47). pp. 1-13.

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Abstract

Agricultural land dominates Brantas River watershed, so it is potentially polluted due to excessive use of agrochemicals. This study aims to calculate the carrying capacity of atrazine and map its distribution from Brantas to Porong River. Carrying capacity is calculated using mass balance approach based on the Decree of the Minister of Environment Number 110 of 2003. Mapping is done using IDW interpolation on ArcGIS Pro. There are 19 sampling points in the upstream-middle part and 21 points in the middle-downstream part. All sample points had atrazine levels exceeding the quality standard of 0.002 mg.L−1. The carrying capacity was calculated to be −368,820.16 kg.day−1 in the upstream-middle part and −63,382.24 kg.day−1 in the middle-downstream part due to the APL being greater than MPL. Based on the mapping results, atrazine concentrations in the upstream-middle section have the highest range in Segment 1 (4.0–11.6 mg.L−1) and in the middledownstream section in Segment A (11.4–17.6 mg.L−1).

Item Type:	Article
Uncontrolled Keywords:	Agriculture · Atrazine · Carrying capacity · Inverse distance weighted · River pollution
Subjects:	T Technology > TD Environmental technology. Sanitary engineering
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	12 Aug 2025 00:21
Last Modified:	12 Aug 2025 00:21
URI:	http://eprints.uthm.edu.my/id/eprint/12927

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