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River Water Quality Monitoring 1990 to 2018

This table provides the raw data from river monitoring sites including Water Framework Directive monitoring sites. It should be noted that, as the data set is in its raw state, it cannot be used to...

Biodiversity Hotspots for Planning

Dataset last updated: 2nd December 2025 This dataset provides indicative areas of biodiversity hotspots in Greater London, identified by research and data analysis using methods derived from the...

Habitat point records from 1988 UMBSM Harris and Lewis sealochs survey

The sea lochs of north Harris and southern Lewis in the Outer Hebrides are amongst the most remote in the British Isles with limited, or no, road access. Six lochs were visited during the present...

Species point records from 1988 UMBSM Harris and Lewis sealochs survey

The sea lochs of north Harris and southern Lewis in the Outer Hebrides are amongst the most remote in the British Isles with limited, or no, road access. Six lochs were visited during the present...

London Atmospheric Emissions Inventory (LAEI) 2016

The LAEI 2016 has been superseded. Click here for the full list of releases. Emissions estimates of key pollutants (NOx, PM10, PM2.5 and CO2) by source type are included for the base year 2016....

Major Railway LAeq 16h

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway Leve

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway LAeq 18h

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway Lden

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway Lden

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway Lday

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway Lday

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway LAeq 16h

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway Leve

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway Leve

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway Lday

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway LAeq 16h

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway LAeq 18h

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...

Major Railway LAeq 06h

Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds...