The 2025 impact factor for Harmful Algae is 4.5. The 5-year impact factor is 5.9. The journal is listed as JCR Q1 in the current Journal Metrics dataset.
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Ranked #617 in Environmental Science by impact factor and #589 among Q1 Environmental Science journals. This context helps compare Harmful Algae against journals publishing in the same field.
Published 626 papers across the last 5 recorded years with a current impact factor of 4.5.
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