Average annual NO2 concentration in selected Italian cities 2022

In 2022, Milan ranked as the worst Italian city in terms of NO2 pollution, with an average annual concentration of 37 micrograms per cubic meter (µg/m3). That year, no Italian city exceeded the European limit value for NO2 concentration of 40 micrograms per cubic meter.在2022年，米兰在意大利城市中因二氧化氮（NO2）污染问题位居最差之列，其年平均浓度高达37微克每立方米（µg/m3）。当年，意大利境内无任何城市二氧化氮浓度超过欧洲规定的40微克每立方米的标准限值。