John Weinstein

Department of Biology, The Citadel

Address: The Citadel, Charleston, South Carolina
Phone: 843.953.7796


Ph.D., 1994, University of South Carolina

Research Interests

  • Environmental toxicology

Current and planned research projects

  • Sources, fate, and effects of microplastics in estuarine habitats
  • Natural stressors and their influence on the phototoxicity of polycyclic aromatic hydrocarbons
  • Chronic effects of piberonyl butoxide exposure to grass shrimp larvae
  • Chemical and biological contamination of stormwater detention pond sediments
  • Pesticide resistance to the organophosphate malathion in grass shrimp


  • Weinstein, J.E. 2023. Microplastics and tire wear particles in South Carolina coastal waters: Sources, pathways, and toxicity. Journal of the South Carolina Academy of Sciences. 21(1): 9-13.
  • Leads, R.R., Weinstein, J.E., Kell, S.E., Overcash, J.M., Ertel, B.M., Gray, A.D. 2023. Spatial and temporal variability of microplastic abundance in estuarine intertidal sediments: Implications for sampling frequency. Science of the Total Environment, 859:160308.
  • Hart, L.B., Dziobak, M., Wells, R.S., Ertel, B.M., Weinstein, J.E. 2022. Microplastics in gastric samples from common bottlenose dolphins (Tursiops truncatus) residing in Sarasota Bay FL (USA). Frontiers in Marine Science.
  • Gray, A.D., Miller, J.A., Weinstein, J.E. 2022. Are green household consumer products less toxic than conventional products? An assessment involving grass shrimp (Palaemon pugio) and Daphnia magna.  Environmental Toxicology and Chemistry, 41(10):2444-2453.
  • Weinstein, J.E., Ertel, B.M. and Gray, A.D. 2022. Accumulation and depuration of microplastic fibers, fragments, and tire particles in the eastern oyster, Crassostrea virginica: A toxicokinetic approach. Environmental Pollution, p.119681.
  • Gray, A.D., Weinstein, J.E., Reigerix, R.C. 2022. Assessment of acute toxicity and developmental transformation impacts of polyethylene microbead exposure on larval daggerblade grass shrimp (Palaemon pugio). Scientific Reports, 12(1):1-8.
  • Weinstein, J.E., Dekle, J.L., Leads, R.R. and Hunter, R.A. 2020. Degradation of bio-based and biodegradable plastics in a salt marsh habitat: Another potential source of microplastics in coastal waters. Marine Pollution Bulletin, 160, p.111518.
  • Parker, B.W., Beckingham, B.A., Ingram, B.C., Ballenger, J.C., Weinstein, J.E. and Sancho, G., 2020. Microplastic and tire wear particle occurrence in fishes from an urban estuary: Influence of feeding characteristics on exposure risk. Marine Pollution Bulletin, 160, p.111539.
  • Jiang, B., Kauffman, A.E., Li, L., McFee, W., Cai, B., Weinstein, J.E, Lead, J.R., Chatterjee, S., Scott, G.I. and Xiao, S., 2020. Health impacts of environmental contamination of micro-and nanoplastics: A review. Environmental Health and Preventive Medicine, 25(1), pp.1-15.
  • Leads, R.R., Burnett, K.G., and Weinstein, J.E. 2019. The effect of microplastic ingestion on survival of the grass shrimp Palaemonetes pugio (Holthuis, 1949) challenged with Vibrio campbellii. Environmental Toxicology and Chemistry, 38(10): 2233-2242.