Brevetoxin composition in water and marine aerosol along a Florida beach: Assessing potential human exposure to marine biotoxins

Autor: A. Weidner, Yung-Sung Cheng, S.L. Hamel, Richard H. Pierce, Clinton M. Irvin, L.C. Backer, Lora E. Fleming, Jerome Naar, Daniel G. Baden, Patricia Blum, Yue Zhou, Michael S. Henry, Barbara Kirkpatrick
Rok vydání: 2005
Předmět:
Zdroj: Harmful Algae. 4:965-972
ISSN: 1568-9883
DOI: 10.1016/j.hal.2004.11.004
Popis: The toxic dinoflagellate, Karenia brevis, produces a suite of polyether neurotoxins (brevetoxins, PbTx) that cause massive fish kills and neurotoxic shellfish poisoning. A unique characteristic of K. brevis blooms is the associated airborne (aerosolized) toxin component causing respiratory irritation to humans and other mammals. This study was undertaken in collaboration with human respiratory effects studies to establish the type and amount of brevetoxins to which beach-goers were exposed during a coastal harmful algal bloom (HAB). Concentrations of K. brevis cells were monitored in water, and brevetoxin concentrations were monitored in water and air over 3-day periods during a non-exposure control study (no HAB) and an exposure study (HAB event) along the Gulf Coast of Sarasota, FL, USA. The aerosol particle size distribution was also determined to assess brevetoxin aerosol deposition in the human respiratory system. During the non-exposure study, very low to background K. brevis cell counts were observed on day 1 and at background levels (
Databáze: OpenAIRE
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