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      <marc:subfield code="p">The effects on human health / </marc:subfield>
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      <marc:subfield code="a">"The goal of this report is to provide a broad framework from the latest available data, most since 1990, in an attempt to estimate the specific agent(s) within the air pollution mixture of acid rain that is/are related to the adverse effects of human health. The direct and indirect health effects of sulphur dioxide (SO₂) and its derivatives, sulphate (SO₄⁼), particulate matter (PM) and acid aerosols (H⁺) are reviewed separately"--Executive summary.</marc:subfield>
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