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Role Of Natural Wetlands In Arsenic Removal From Arsenic-Contaminated Runoff, Vanlop Thathong, Netnapid Tantamsapya, Chatpet Yossapol, Chih-Hsiang Liao, Wanpen Wirojanagud
Role Of Natural Wetlands In Arsenic Removal From Arsenic-Contaminated Runoff, Vanlop Thathong, Netnapid Tantamsapya, Chatpet Yossapol, Chih-Hsiang Liao, Wanpen Wirojanagud
Applied Environmental Research
This research aims to identify the role of natural wetlands in arsenic (As) removal. Phu Lek wetland in Loei Province, Thailand, was selected as the study area. Monthly samples of water (144), plant (360), and sediment (144) were collected from the wetland for 24 months. As concentration in the surface water at the wetland inlet was 0.85±0.26 mg L-1, and 0.02±0.01 mg L-1 at the wetland outlet. It was observed that the As level in water decreased significantly along its flow path, with an As removal efficiency of 98 %. As concentration in the sediment was 89.53-356.22 mg kg-1 at …
Risk Management Of Lead And Arsenic Poisoning In Children Through Public Participation In Communities Near Abandoned Tin Mine, Southern Thailand, Anchalee Pongkaset, Banchong Witthayawirasak
Risk Management Of Lead And Arsenic Poisoning In Children Through Public Participation In Communities Near Abandoned Tin Mine, Southern Thailand, Anchalee Pongkaset, Banchong Witthayawirasak
Applied Environmental Research
Tamtalu Subdistrict, Bannangsta District in Yala Province, southern Thailand was the site of an abandoned tin mine, and was contaminated by lead and arsenic from the mine tailings. As children are a high risk group from these highly toxic contaminants, this study aimed to identify approaches to reduce children's exposure in the area. The study was conducted through participatory action research (PAR) to empower the community strengthen sustainable risk management. The participants were local public health officials, public health volunteers, parents of local children and local community leaders. The participants were engaged in activities relating to risk communication, training on …
Determination Of Arsenic Intake By Duplicate Diet Portion Sampling Method Among Ronphibun Residents, Piyawat Saipan, Suthep Ruangwises
Determination Of Arsenic Intake By Duplicate Diet Portion Sampling Method Among Ronphibun Residents, Piyawat Saipan, Suthep Ruangwises
Applied Environmental Research
Total daily dietary arsenic intake by adults in Ronphibun district, within Thailand has been re-evaluated via duplicate portion sampling and atomic absorption spectrophotometer determination of the arsenic. Hundred duplicate diet samples were collected from participants. The ranges of arsenic concentration in diets were between 0.49 and 1.33 µg g-1, lower than the Thailand Standard value of 2 µg g-1. The daily intake of total arsenic in the Ronphibun villagers ranged between 130.72 and 550.26 µg d-1 with a mean of 274.97 µg d-1 (SD = 74.78 µg d-1). Daily arsenic intakes of males (mean \inline \pm SD; 297.89 \inline \pm …