Related topics: nitrogen

COVID-19 lockdowns linked to pollution spikes in some cities

Lockdowns last year in response to COVID-19 resulted in drastic cuts to emissions, especially from vehicle tailpipes, and yet some urban areas saw a paradoxical spike in ozone air pollution. A new study led by the National ...

Air pollution returning to pre-COVID levels

In early 2020, data from satellites were used to show a decline in air pollution coinciding with nationwide lockdowns put in place to stop the spread of COVID-19. One year later, as lockdown restrictions loosen in some countries ...

Air pollution fell sharply during lockdown

The far-reaching mobility restrictions at the beginning of the COVID pandemic in March 2020 created a unique situation for atmospheric sciences: "During the 2020 lockdown, we were able to directly investigate the actual effects ...

Wastewater treatment at one-third the size and cost

Wastewater treatment systems that combine conventional set-ups with a relatively new technology could reap a host of benefits: smaller plant sizes, lower energy costs and more nitrogen pollution removed.

How to set ambitious goals for sustainable agriculture

Food production in the Netherlands is an economic success but has led to many environmental issues, including nitrogen pollution. Recently, the policy to allow economic growth while reducing nitrogen losses was disapproved ...

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