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1936024 
Journal Article 
Natural decrease of dissolved arsenic in a small stream receiving drainages of abandoned silver mines in Guanajuato, Mexico 
Ramos Arroyo, YR; Serafín Muñoz, AH; Yanez Barrientos, E; Rodriguez Huerta, I; Wrobel, K; Wrobel, K 
In Press 
Yes 
Bulletin of Environmental Contamination and Toxicology
ISSN: 0007-4861
EISSN: 1432-0800 
91 
539-544  
English 
Arsenic release from the abandoned mines and its fate in a local stream were studied. Physicochemical parameters, metals/metalloids and arsenic species were determined. One of the mine drainages was found as a point source of contamination with 309 μg L(-1) of dissolved arsenic; this concentration declined rapidly to 10.5 μg L(-1) about 2 km downstream. Data analysis confirmed that oxidation of As(III) released from the primary sulfide minerals was favored by the increase of pH and oxidation reduction potential; the results obtained in multivariate approach indicated that self-purification of water was due to association of As(V) with secondary solid phase containing Fe, Mn, Ca. 
Mine drainage; Arsenic; Natural attenuation of dissolved arsenic; Multivariate analysis 
IRIS
• Arsenic Hazard ID
          PubMed
          Considered New
          PubMed
          Considered New
          PubMed
          Considered New
          PubMed
          WOS
          ToxNet
          Considered New
          ToxNet
          Excluded
               Toxnet Duplicates
     2. Lit Search Updates through Oct 2015
          PubMed
          WOS
          ToxNet
          Considered
     7. Other Studies through Oct 2015
          Exposure Assessment
• Arsenic (Inorganic)
     1. Literature
          Lit search updates through Oct 2015
     3. Hazard ID Screening
          Other potentially supporting studies