The UK government has been urged to stick to a new EU air quality law that is expected to almost halve the number of premature deaths caused by pollution.
The European Parliament yesterday reached an agreement with national governments on new binding targets to cut air pollution.
The targets, which must be met by 2030, will lead to a 49.6% reduction in the health impact from air pollution.
Liberal Democrat MEP Catherine Bearder, who led negotiations for the Liberal group in the European Parliament, commented:
"This agreement to cut deadly air pollution will save thousands of lives throughout Europe every year.
"The UK government must still commit to meeting these targets no matter what happens in the coming years.
"Brexit cannot be used as an excuse to water down environmental laws and become the dirty man of Europe again."