Michelle L Hladik

Summary

Affiliation: U.S. Geological Survey
Country: USA

Publications

  1. doi request reprint Exposure of native bees foraging in an agricultural landscape to current-use pesticides
    Michelle L Hladik
    U S Geological Survey, California Water Science Center, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA Electronic address
    Sci Total Environ 542:469-77. 2016
  2. doi request reprint Widespread occurrence of neonicotinoid insecticides in streams in a high corn and soybean producing region, USA
    Michelle L Hladik
    U S Geological Survey, California Water Science Center, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA Electronic address
    Environ Pollut 193:189-96. 2014
  3. doi request reprint Discharges of produced waters from oil and gas extraction via wastewater treatment plants are sources of disinfection by-products to receiving streams
    Michelle L Hladik
    California Water Science Center, U S Geological Survey, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA Electronic address
    Sci Total Environ 466:1085-93. 2014
  4. doi request reprint Pyrethroid insecticides in bed sediments from urban and agricultural streams across the United States
    Michelle L Hladik
    U S Geological Survey, Sacramento, CA 95819, USA
    J Environ Monit 14:1838-45. 2012
  5. doi request reprint Concentrations and loads of suspended sediment-associated pesticides in the San Joaquin River, California and tributaries during storm events
    Michelle L Hladik
    U S Geological Survey, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA
    Sci Total Environ 408:356-64. 2009
  6. doi request reprint Assessing the occurrence and distribution of pyrethroids in water and suspended sediments
    Michelle L Hladik
    US Geological Survey, Sacramento, California 95819, USA
    J Agric Food Chem 57:9079-85. 2009
  7. doi request reprint Neutral degradates of chloroacetamide herbicides: occurrence in drinking water and removal during conventional water treatment
    Michelle L Hladik
    Department of Geography and Environmental Engineering, Johns Hopkins University, 313 Ames Hall, 3400 N Charles Street, Baltimore, MD 21218 2686, USA
    Water Res 42:4905-14. 2008
  8. doi request reprint Analysis of chlorothalonil and three degradates in sediment and soil
    Michelle L Hladik
    US Geological Survey, Sacramento, California 95819, USA
    J Agric Food Chem 56:2310-4. 2008
  9. doi request reprint A multi-residue method for the analysis of pesticides and pesticide degradates in water using HLB solid-phase extraction and gas chromatography-ion trap mass spectrometry
    Michelle L Hladik
    US Geological Survey, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA
    Bull Environ Contam Toxicol 80:139-44. 2008
  10. doi request reprint Occurrence and potential sources of pyrethroid insecticides in stream sediments from seven U.S. metropolitan areas
    Kathryn M Kuivila
    California Water Science Center, U S Geological Survey, Sacramento, California, United States
    Environ Sci Technol 46:4297-303. 2012

Detail Information

Publications13

  1. doi request reprint Exposure of native bees foraging in an agricultural landscape to current-use pesticides
    Michelle L Hladik
    U S Geological Survey, California Water Science Center, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA Electronic address
    Sci Total Environ 542:469-77. 2016
    ....
  2. doi request reprint Widespread occurrence of neonicotinoid insecticides in streams in a high corn and soybean producing region, USA
    Michelle L Hladik
    U S Geological Survey, California Water Science Center, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA Electronic address
    Environ Pollut 193:189-96. 2014
    ..Temporal patterns in concentrations reveal pulses of neonicotinoids associated with rainfall events during crop planting, suggesting seed treatments as their likely source. ..
  3. doi request reprint Discharges of produced waters from oil and gas extraction via wastewater treatment plants are sources of disinfection by-products to receiving streams
    Michelle L Hladik
    California Water Science Center, U S Geological Survey, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA Electronic address
    Sci Total Environ 466:1085-93. 2014
    ..Therefore, produced water brines that have been disinfected are potential sources of DBPs along with DBP precursors to streams wherever these wastewaters are discharged...
  4. doi request reprint Pyrethroid insecticides in bed sediments from urban and agricultural streams across the United States
    Michelle L Hladik
    U S Geological Survey, Sacramento, CA 95819, USA
    J Environ Monit 14:1838-45. 2012
    ..Predicted toxicity was greater for urban areas and attributed to bifenthrin, cyfluthrin and cypermethrin, while in agricultural areas the toxicity was mainly attributed to bifenthrin...
  5. doi request reprint Concentrations and loads of suspended sediment-associated pesticides in the San Joaquin River, California and tributaries during storm events
    Michelle L Hladik
    U S Geological Survey, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA
    Sci Total Environ 408:356-64. 2009
    ..Pesticide detections generally reflected pesticide application, but other factors such as physical-chemical properties and timing of application were also important to pesticide loads...
  6. doi request reprint Assessing the occurrence and distribution of pyrethroids in water and suspended sediments
    Michelle L Hladik
    US Geological Survey, Sacramento, California 95819, USA
    J Agric Food Chem 57:9079-85. 2009
    ..In spiked water samples and field samples, the majority of the pyrethroids were associated with the suspended sediments...
  7. doi request reprint Neutral degradates of chloroacetamide herbicides: occurrence in drinking water and removal during conventional water treatment
    Michelle L Hladik
    Department of Geography and Environmental Engineering, Johns Hopkins University, 313 Ames Hall, 3400 N Charles Street, Baltimore, MD 21218 2686, USA
    Water Res 42:4905-14. 2008
    ..Significant removals (average of 40% for all compounds) were only found in the spring samples at those utilities that employed activated carbon...
  8. doi request reprint Analysis of chlorothalonil and three degradates in sediment and soil
    Michelle L Hladik
    US Geological Survey, Sacramento, California 95819, USA
    J Agric Food Chem 56:2310-4. 2008
    ..None of the target compounds were detected. Laboratory fortified recoveries of chlorothalonil and its degradates in these environmental sediment samples ranged from 75% to 89%...
  9. doi request reprint A multi-residue method for the analysis of pesticides and pesticide degradates in water using HLB solid-phase extraction and gas chromatography-ion trap mass spectrometry
    Michelle L Hladik
    US Geological Survey, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA
    Bull Environ Contam Toxicol 80:139-44. 2008
    ..In the higher DOC water, the detection limits were slightly higher (1-15 ng/L). Additionally, surface water samples from four sites were analyzed and 14 pesticides were detected with concentrations ranging from 4 to 1,200 ng/L...
  10. doi request reprint Occurrence and potential sources of pyrethroid insecticides in stream sediments from seven U.S. metropolitan areas
    Kathryn M Kuivila
    California Water Science Center, U S Geological Survey, Sacramento, California, United States
    Environ Sci Technol 46:4297-303. 2012
    ..This study shows that pyrethroids commonly occur in urban stream sediments and may be contributing to sediment toxicity across the country...
  11. ncbi request reprint Neutral chloroacetamide herbicide degradates and related compounds in Midwestern United States drinking water sources
    Michelle L Hladik
    Department of Geography and Environmental Engineering, Johns Hopkins University, 313 Ames Hall, 3400 N Charles St, Baltimore, MD 21218 2686, USA
    Sci Total Environ 390:155-65. 2008
    ....
  12. ncbi request reprint Removal of neutral chloroacetamide herbicide degradates during simulated unit processes for drinking water treatment
    Michelle L Hladik
    Department of Geography and Environmental Engineering, Johns Hopkins University, 313 Ames Hall, 3400 N Charles St, Baltimore, MD 21218 2686, USA
    Water Res 39:5033-44. 2005
    ..The parent herbicides and neutral degradates underwent adsorption by powdered activated carbon (PAC). Adsorption capacities (Freundlich K constants) correlated with K(ow) values...
  13. ncbi request reprint Are neutral chloroacetamide herbicide degradates of potential environmental concern? Analysis and occurrence in the upper Chesapeake Bay
    Michelle L Hladik
    Department of Geography and Environmental Engineering, Johns Hopkins University, 313 Ames Hall, 3400 North Charles Street, Baltimore, Maryland 21218 2686, USA
    Environ Sci Technol 39:6561-74. 2005
    ..These micropollutants therefore merit more detailed attention as contaminants of potential environmental concern...