C J Schmitt

Summary

Affiliation: U.S. Geological Survey
Country: USA

Publications

  1. ncbi request reprint A screening-level assessment of lead, cadmium, and zinc in fish and crayfish from Northeastern Oklahoma, USA
    Christopher J Schmitt
    U S Geological Survey USGS, Columbia Environmental Research Center, 4200 New Haven Rd, Columbia, MO 65201, USA
    Environ Geochem Health 28:445-71. 2006
  2. ncbi request reprint Environmental contaminants and biomarker responses in fish from the Rio Grande and its U.S. tributaries: spatial and temporal trends
    Christopher J Schmitt
    U S Geological Survey USGS, Columbia Environmental Research Center CERC, 4200 New Haven Rd, Columbia, MO 65201, USA
    Sci Total Environ 350:161-93. 2005
  3. ncbi request reprint Biochemical effects of lead, zinc, and cadmium from mining on fish in the Tri-States District of northeastern Oklahoma, USA
    Christopher J Schmitt
    U S Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, Missouri 65201, USA
    Environ Toxicol Chem 24:1483-95. 2005
  4. ncbi request reprint Accumulation of metals in fish from lead-zinc mining areas of southeastern Missouri, USA
    Christopher J Schmitt
    US Geological Survey USGS, Columbia Environmental Research Center CERC, 4200 New Haven Road, Columbia, MO 65201, USA
    Ecotoxicol Environ Saf 67:14-30. 2007
  5. ncbi request reprint Biomarkers of metals exposure in fish from lead-zinc mining areas of southeastern Missouri, USA
    Christopher J Schmitt
    US Geological Survey USGS, Columbia Environmental Research Center CERC, 4200 New Haven Rd, Columbia, Missouri 65201, USA
    Ecotoxicol Environ Saf 67:31-47. 2007
  6. ncbi request reprint Evaluation of potentially nonlethal sampling methods for monitoring mercury concentrations in smallmouth bass (Micropterus dolomieu)
    C J Schmitt
    US Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO 65201, USA
    Arch Environ Contam Toxicol 53:84-95. 2007
  7. doi request reprint Concentrations of cadmium, cobalt, lead, nickel, and zinc in blood and fillets of northern hog sucker (Hypentelium nigricans) from streams contaminated by lead-zinc mining: implications for monitoring
    C J Schmitt
    Columbia Environmental Research Center, US Geological Survey, Columbia, MO 65201, USA
    Arch Environ Contam Toxicol 56:509-24. 2009
  8. doi request reprint Mercury bioaccumulation and biomagnification in Ozark stream ecosystems
    Christopher J Schmitt
    Columbia Environmental Research Center, US Geological Survey, 4200 New Haven Road, Columbia, MO 65201, USA
    Ecotoxicol Environ Saf 74:2215-24. 2011
  9. doi request reprint Ecological effects of lead mining on Ozark streams: In-situ toxicity to woodland crayfish (Orconectes hylas)
    A L Allert
    US Geological Survey, Columbia Environmental Research Center USGS CERC, 4200 New Haven Road, Columbia, MO 65201, USA
    Ecotoxicol Environ Saf 72:1207-19. 2009
  10. doi request reprint Effects of historical lead-zinc mining on riffle-dwelling benthic fish and crayfish in the Big River of southeastern Missouri, USA
    A L Allert
    Columbia Environmental Research Center, US Geological Survey, Columbia, MO 65201, USA
    Ecotoxicology 22:506-21. 2013

Detail Information

Publications21

  1. ncbi request reprint A screening-level assessment of lead, cadmium, and zinc in fish and crayfish from Northeastern Oklahoma, USA
    Christopher J Schmitt
    U S Geological Survey USGS, Columbia Environmental Research Center, 4200 New Haven Rd, Columbia, MO 65201, USA
    Environ Geochem Health 28:445-71. 2006
    ..The results demonstrate the potential for adverse effects in fish, wildlife, and humans and indicate that further investigation of human health and ecological risks, to include additional exposure pathways and endpoints, is warranted...
  2. ncbi request reprint Environmental contaminants and biomarker responses in fish from the Rio Grande and its U.S. tributaries: spatial and temporal trends
    Christopher J Schmitt
    U S Geological Survey USGS, Columbia Environmental Research Center CERC, 4200 New Haven Rd, Columbia, MO 65201, USA
    Sci Total Environ 350:161-93. 2005
    ....
  3. ncbi request reprint Biochemical effects of lead, zinc, and cadmium from mining on fish in the Tri-States District of northeastern Oklahoma, USA
    Christopher J Schmitt
    U S Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, Missouri 65201, USA
    Environ Toxicol Chem 24:1483-95. 2005
    ..Collectively, our results indicate that Pb is both bioavailable and active biochemically in the Spring-Neosho River system...
  4. ncbi request reprint Accumulation of metals in fish from lead-zinc mining areas of southeastern Missouri, USA
    Christopher J Schmitt
    US Geological Survey USGS, Columbia Environmental Research Center CERC, 4200 New Haven Road, Columbia, MO 65201, USA
    Ecotoxicol Environ Saf 67:14-30. 2007
    ..These findings confirm previous studies indicating that lead and other metals are released to streams from active lead-zinc mines and are available for uptake by aquatic organisms...
  5. ncbi request reprint Biomarkers of metals exposure in fish from lead-zinc mining areas of southeastern Missouri, USA
    Christopher J Schmitt
    US Geological Survey USGS, Columbia Environmental Research Center CERC, 4200 New Haven Rd, Columbia, Missouri 65201, USA
    Ecotoxicol Environ Saf 67:31-47. 2007
    ..Collectively, these results confirm that metals are released to streams from active lead-zinc mining sites and are accumulated by fish...
  6. ncbi request reprint Evaluation of potentially nonlethal sampling methods for monitoring mercury concentrations in smallmouth bass (Micropterus dolomieu)
    C J Schmitt
    US Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO 65201, USA
    Arch Environ Contam Toxicol 53:84-95. 2007
    ..The biopsy needle was the most difficult to use, especially on smaller fish, and its relative expense necessitates reuse and, consequently, thorough cleaning between fish to prevent cross-contamination...
  7. doi request reprint Concentrations of cadmium, cobalt, lead, nickel, and zinc in blood and fillets of northern hog sucker (Hypentelium nigricans) from streams contaminated by lead-zinc mining: implications for monitoring
    C J Schmitt
    Columbia Environmental Research Center, US Geological Survey, Columbia, MO 65201, USA
    Arch Environ Contam Toxicol 56:509-24. 2009
    ....
  8. doi request reprint Mercury bioaccumulation and biomagnification in Ozark stream ecosystems
    Christopher J Schmitt
    Columbia Environmental Research Center, US Geological Survey, 4200 New Haven Road, Columbia, MO 65201, USA
    Ecotoxicol Environ Saf 74:2215-24. 2011
    ....
  9. doi request reprint Ecological effects of lead mining on Ozark streams: In-situ toxicity to woodland crayfish (Orconectes hylas)
    A L Allert
    US Geological Survey, Columbia Environmental Research Center USGS CERC, 4200 New Haven Road, Columbia, MO 65201, USA
    Ecotoxicol Environ Saf 72:1207-19. 2009
    ..hylas populations in streams draining the Viburnum Trend, and that in-situ toxicity testing was a valuable tool for assessing the impacts of mining on crayfish populations...
  10. doi request reprint Effects of historical lead-zinc mining on riffle-dwelling benthic fish and crayfish in the Big River of southeastern Missouri, USA
    A L Allert
    Columbia Environmental Research Center, US Geological Survey, Columbia, MO 65201, USA
    Ecotoxicology 22:506-21. 2013
    ..Collectively, the results provided direct evidence that metals associated with historical mining activities in the OLB continue to affect aquatic life in the BGR...
  11. doi request reprint Effects of mining-derived metals on riffle-dwelling benthic fishes in Southeast Missouri, USA
    A L Allert
    US Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO 65201, USA
    Ecotoxicol Environ Saf 72:1642-51. 2009
    ..Sculpins may be useful as a sentinel species for assessing mining-related impacts on fish communities...
  12. ncbi request reprint Comparison of an enzyme-linked immunosorbent assay (ELISA) to gas chromatography (GC)--measurement of polychlorinated biphenyls (PCBs) in selected US fish extracts
    J L Zajicek
    US Geological Survey, Columbia Environmental Research Center, MO 65201, USA
    Chemosphere 40:539-48. 2000
    ..Partial least squares with latent variable analysis of GC and ELISA data of selected Aroclors and fish samples also support the conclusion that ELISA derived PCB concentrations are dependent on the degree of chlorination...
  13. ncbi request reprint Organochlorine chemical residues in fish from the Mississippi River basin, 1995
    C J Schmitt
    U S Geological Survey, Columbia Environmental Research Center, 4200 New Haven Rd, Columbia, Missouri 65201, USA
    Arch Environ Contam Toxicol 43:81-97. 2002
    ..Endrin was detected exclusively at the Memphis site. PCB concentrations generally declined, and residues were detected (>or= 0.05 microg/g) at only 35% of the stations, mostly in the more industrialized parts of the MRB...
  14. ncbi request reprint The H4IIE cell bioassay as an indicator of dioxin-like chemicals in wildlife and the environment
    J J Whyte
    Columbia Environmental Research Center, U S Geological Survey Biological Resources Division, Columbia, Missouri 65201, USA
    Crit Rev Toxicol 34:1-83. 2004
    ....
  15. ncbi request reprint Concentrations of Arsenic, Cadmium, Copper, Lead, Selenium, and zinc in fish from the Mississippi River basin, 1995
    Christopher J Schmitt
    U S Geological Survey, Columbia Environmental Research Center Columbia, Missouri, USA
    Environ Monit Assess 90:289-321. 2004
    ..8-4.7 microg g-(1) in bass and carp); and Pb, Cd, and Zn at Station 67 (Allegheny R. at Natrona, PA), where levels of these metals were high in the past and increased from 1986 to 1995...
  16. ncbi request reprint Concentrations of cadmium, lead, and zinc in fish from mining-influenced waters of northeastern Oklahoma: sampling of blood, carcass, and liver for aquatic biomonitoring
    William G Brumbaugh
    U S Geological Survey, Columbia Environmental Research Center, 4200 New Haven Rd, Columbia, MO 65201, USA
    Arch Environ Contam Toxicol 49:76-88. 2005
    ..001). Our data indicate that potentially nonlethal blood sampling can be useful for monitoring of selected metals in carp, catfish, and perhaps other fishes...
  17. ncbi request reprint A longitudinal assessment of the aquatic macroinvertebrate community in the channelized lower Missouri River
    Barry C Poulton
    U S Geological Survey, Columbia Environmental Research Center, Columbia, Missouri, USA
    Environ Monit Assess 85:23-53. 2003
    ..We recommend accomplishing this with longitudinal multi-habitat sampling at a larger number of sites related to all potential sources of impairment, including major tributaries, urban areas, and point sources...
  18. ncbi request reprint Inhibition of erythrocyte delta-aminolevulinic acid dehydratase (ALAD) activity in fish from waters affected by lead smelters
    Christopher J Schmitt
    U S Geological Survey, Columbia Environmental Research Center, Missouri, USA
    Environ Monit Assess 77:99-119. 2002
    ..We recommend that Zn be measured along with Pb when ALAD activity is used as a biomarker and the collection of at least 10 fish of a species at each site to facilitate statistical analysis...
  19. ncbi request reprint Environmental contaminants in fish and their associated risk to piscivorous wildlife in the Yukon River Basin, Alaska
    Jo Ellen Hinck
    US Geological Survey USGS, Columbia Environmental Research Center CERC, 4200 New Haven Rd, Columbia, MO 65201, USA
    Arch Environ Contam Toxicol 51:661-72. 2006
    ..Selenium and zinc concentrations exceeded the NEHCs and LEHCs for only the small bird model. These results indicate that mercury should continue to be monitored and assessed in Alaskan fish and wildlife...
  20. ncbi request reprint Biomonitoring of lead, zinc, and cadmium in streams draining lead-mining and non-mining areas, southeast Missouri, USA
    John M Besser
    US Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO 65201, USA
    Environ Monit Assess 129:227-41. 2007
    ..Our results also demonstrate that metal exposure in the study area differed significantly among sample types, habitats, and years, and that these factors should be carefully considered in the design of biomonitoring studies...
  21. ncbi request reprint Environmental contaminants and biomarker responses in fish from the Columbia River and its tributaries: spatial and temporal trends
    Jo Ellen Hinck
    U S Geological Survey, Columbia Environmental Research Center, 4200 New Haven Rd, Columbia, MO 65201, USA
    Sci Total Environ 366:549-78. 2006
    ..Results from our study and other investigations indicate that continued monitoring in the CRB is warranted to identify consistently degraded sites and those with emerging problems...