Sentence examples for average annual concentrations from inspiring English sources

Average annual concentrations of nitrate during the years studied are not statistically different, but interaction between proximity and years is statistically significant (F = 2.07; p = 0.04).

Finally, the spatial pollutant surfaces were calibrated yearly to estimate average annual concentrations between 1975 and 1994.

The average annual concentrations of NO2 and PM10 in 2002 were 22 μg/m and 80 μg/m, respectively.

Average annual concentrations of NO2 and PM10 in 2002 were 7 μg/m and 68 μg/m, respectively.

The LUR models of average annual concentrations explained a substantial amount of the spatial variation (R = 0.79 for PM2.5 and 0.80 for NO2).

PM2.5 is often used as a general indicator for the level of anthropogenic air pollution: the average annual concentrations of PM2.5 currently range from below 10 µg/m to over 100 µg/m around the world.

The mayor's most recent dose of real talk followed an announcement that Beijing had failed to meet its 2014 target of a five-per-cent reduction in the average annual concentration of tiny particulate matter, known as PM2.5.

Even if the city were to reach its 2017 target — a twenty-five-per-cent reduction in PM2.5 — the resulting average annual concentration of particles would still be about sixty micrograms per cubic meter, which is nearly twice the Chinese national standard and six times the World Health Organization's guidance level.

In the European Union the advisory value for health of Hg in the indoor air is set to 50 ng/m3 (average annual concentration) and therefore it is lower than the official Dutch threshold level of 20 µg/m3 (time weight average over 8 h) [4].

There was a clear relationship with average annual Pi concentrations in the GOS data.

These values exceeded average annual ambient concentrations for the local area by more than 10 times for acetone and more than 25 times for acetaldehyde.