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        <r:String xml:lang="en">One year measurements of ammonia levels at three Swedish farms</r:String>
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          <r:String xml:lang="sv">IVL Svenska Miljöinstitutet</r:String>
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          <r:String xml:lang="sv">IVL Svenska Miljöinstitutet</r:String>
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        <r:SimpleDate>2026-04-10</r:SimpleDate>
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      <r:Content xml:lang="en">The dataset consists of long-term, on-site NH₃ concentration measurements collected at three farms in Sweden (pig, poultry, and dairy). Monthly average concentrations are recorded from June 2023 to May 2024 at nine spatially distributed sampling locations around each farm.</r:Content>
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