Pre-closure assessment of elevated arsenic and other potential environmental constraints to developing aquaculture and fisheries: The case of the Mae Moh mine and power plant, Lampang, Thailand

Woon, Seok-Young; Srinuansom, K.; Chuah, C. Joon; Ramchunder, Sorain J.; Promya, Jongkon; Ziegler, Alan D.

doi:10.1016/j.chemosphere.2020.128682

Cited by 2 publications

(1 citation statement)

References 39 publications

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“…The Ping River basin of northern Thailand, covering an area of 25 370 km 2 , faces water pollution challenges from various sources, including agriculture, industry/manufacturing, urban activities, and some mining, leading to the presence of both traditional and emerging contaminants in the water bodies within the river system. − The region has three distinct seasons: (1) a wet and rainy season (S1) occurs between June to late October; (2) a lengthy dry season (S2) extends from November to March; , and (3) the hot and dry season (S3) extends from March to May; Some work has shown that the variability in various contaminant presence in Thailand is associated with seasonality (e.g., Chiamsathit et al, 2020; Chuah and Ziegler, 2018; Harnpicharnchai et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

Spatial and Temporal Patterns of Emerging and Persistent Contaminants in a Mixed-Use Catchment: A Case Study of the Upper Ping in Northern Thailand

Lee,

Ziegler,

Marques dos Santos

et al. 2024

ACS EST Water

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This study investigated the occurrence and concentration of emerging and persistent contaminants (EPC) within a variety of land uses in the Ping River catchment of northern Thailand. Urban sites exhibited the highest levels of contamination, followed by agriculture and rural sites. The high presence of pharmaceuticals, daily use compounds, and industrial-related compounds in urban areas indicates significant contributions of wastewater likely associated with drainage from areas with manufacturing, repair, and medical activities, as well as dense residential living. The ubiquitous occurrence of daily use compounds (caffeine and acesulfame) in all land-use types was an indicator of significant gray water pollution in the catchment. Seasonal variations in EPC occurrence were not significant, possibly due to constant mixing or flushing of EPCs within the large catchment through multiple flow pathways. The complexity of EPC occurrence in the mixed-use catchment was dependent on factors related to EPC usage and processes, both natural and anthropogenic, that affect EPC entry into the environment from a variety of sources and then flow to the river system and, potentially, the groundwater. The findings highlight the heterogeneity and dynamic nature of mixed-use anthropogenic landscapes and emphasize the need for further research on the influence of hydrological connectivity on the EPC presence and intensity in such settings.

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