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  2. Understanding APIS Data

FAQ | 31.10.2024

What monitoring data is used in the pollutant data on APIS?

FAQ | 31.10.2024

What types of emission sources are accounted for in APIS background data?

FAQ | 31.10.2024

Where can I find data about critical loads, levels and background concentration and deposition for UK national (SSSIs) and international protected sites?

FAQ | 31.10.2024

Which acidity critical load values (CLmax S, CLminN, etc) should be used in risk assessment and how can it be reported?

FAQ | 31.10.2024

Why are there data missing about Areas/Sites of Special Scientific Interest in some of the critical level/load datasets for download?

FAQ | 30.10.2024

Does APIS have data about change in nitrogen deposition over time?

FAQ | 30.10.2024

Can I get the data for all grid squares in the Search by Location Tool?

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