Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
For petrol cars, the required standard is Euro 4 (for nitrogen oxides, or NOx) and for diesel cars, it’s Euro 6 (for both NOx and particulate matter, or PM).
For petrol cars, the required standard is Euro 4 (for nitrogen oxides, or NOx) and for diesel cars, it’s Euro 6 (for both NOx and particulate matter, or PM).
“Milan has some of the poorest air quality in Europe, but area B will have a significant impact, cutting both PM10 and NOx pollution in half by 2022 and 2026, respectively.”