3 ms·
Current level of NO2 in our city, as measured by the official sources is 48 um/m3, with the official safe level of 200. Why is my gas stove a problem?
by sputr 5y ago
Current level of NO2 in our city, as measured by the official sources is 48 um/m3, with the official safe level of 200.
Why is my gas stove a problem?