Blue–green algal blooms have been documented since the 12th century. Foreword.
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D000367:Age Factors; D002648:Child; D016208:Databases, Factual; D004781:Environmental Exposure / Q000009:adverse effects / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods; D057097:Harmful Algal Bloom / Q000502:physiology*; D006801:Humans; D011159:Population Surveillance / Q000379:methods; D014118:Toxins, Biological / Q000009:adverse effects* / Q000032:analysis; D014877:Water Pollution, Chemical / Q000009:adverse effects* / Q000032:analysis
D014118:Toxins, Biological