Studies of the health hazards of toxic algae blooms have focused largely on the danger of direct contact with contaminated water in lakes, rivers and the ocean. Now a new study shows that even airborne exposure to the bacteria from a toxic bloom could also pose a risk.
The study, published this month in the peer-reviewed scientific journal Harmful Algae, showed the presence of microcystin, an extremely toxic type of bacteria produced by eruptions of blue-green algae, in the nasal passages of almost all of its 125 participants, coastal residents of Florida. Some had not come into direct contact with contaminated water.
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