UK gov housing strategy/Nitrate neutralizing?

Hi all.
I’m hoping you can help me with some info ( I’m also looking generally online ).
I’ve just been to a local meeting trying to account for housing needed with the governments revised planning policies. These have meant a vast increase in housing we need to provide ( due to being in an affluent area ) however, I’m wondering how this has affected other areas of the UK ( primarily less affluent areas where derelict housing can be used and new housing may bring business and money into areas which need it ). Have you any knowledge of this in your areas?
Also there’s notes about nitrate neutrality etc. ( which means trying not to increase the levels already being produced per year rather than lower it ) Have you come across any new ideas in the works on how to filter out or neutralize nitrates/nitrogen which is at present seeping into waterways?

Thanks

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