Assessing arsenic intake from groundwater and rice by residents in Prey Veng province, Cambodia.
We investigated total daily intake of As by residents in Prey Veng province in the Mekong River basin of Cambodia. Groundwater (n = 11), rice (n = 11) and fingernail (n = 23) samples were randomly collected from the households and analyzed for total As by inductively coupled plasma mass spectrometry. Calculation indicated that daily dose of inorganic As was greater than the lower limits on the benchmark dose for a 0.5% increased incidence of lung cancer (BMDL0.5 equals to 3.0 μg d(-1) kg(-1)body wt.). Moreover, positive correlation between As in fingernail and daily dose of As from groundwater and rice and total daily dose of As were found. These results suggest that the Prey Veng residents are exposed to As in groundwater. As in rice is an additional source which is attributable to high As accumulation in human bodies in the Mekong River basin of Cambodia.
Research and Development Unit, Cambodian Chemical Society, Street 598, Phnom Penh, Cambodia. Electronic address: kongkeaphan@gmail.com.
Kongkea
K
Phan
Department of Chemistry, Faculty of Science, Royal University of Phnom Penh, Russian Blvd, Phnom Penh, Cambodia.
Samrach
S
Phan
Department of Chemistry, Faculty of Science, Royal University of Phnom Penh, Russian Blvd, Phnom Penh, Cambodia.
Savoeun
S
Heng
Department of Chemistry, Faculty of Science, Royal University of Phnom Penh, Russian Blvd, Phnom Penh, Cambodia.
Laingshun
L
Huoy
School of Environmental Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea. Electronic address: kwkim@gist.ac.kr.
Kyoung-Woong
KW
Kim
D000293:Adolescent; D000328:Adult; D000368:Aged; D001151:Arsenic / Q000032:analysis*; D002160:Cambodia; D002648:Child; D004032:Diet / Q000706:statistics & numerical data; D004781:Environmental Exposure / Q000706:statistics & numerical data*; D005260:Female; D060587:Groundwater / Q000737:chemistry*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009262:Nails / Q000737:chemistry; D012275:Oryza / Q000737:chemistry*; D045483:Rivers / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data; D055815:Young Adult
D014874:Water Pollutants, Chemical; D001151:Arsenic
Arsenic; Cambodia; Daily intake; Fingernail; Groundwater; Prey Veng; Rice