Sentence examples for mean ozone levels from inspiring English sources

ED visits occurred 28% more frequently when the mean ozone levels were > 0.06 ppm than when they were < 0.06 ppm.

Of note, the effect of 3-day mean ozone levels in spring in the single-pollutant model did not differ markedly from that in the multipollutant model.

The variables extracted included: daily mean temperature; daily maximum temperature; daily minimum temperature; daily mean levels of nitrogen oxides (NOx); and daytime maximum 8-hour mean ozone levels.

With respect to annual effects of ozone, we also observed a significant association between daily (day before a PCV) and 3-day mean ozone levels before a PCV and PCVs (tables 4 and 5).

We also detected a statistically significant association of daily (day before a PCV) and 3-day mean ozone levels before a PCV with PCVs in spring in the multipollutant model (table 5), with respective ORs per 10 ppb increment of daily (day before a PCV) and 3-day mean ozone levels of 1.17 (95% CI 1.01 to 1.35; p=0.04) and 1.21 (95% CI 1.00 to 1.46; p=0.04).

We noted an association between PCVs and daily ozone levels on the day before a PCV (OR=1.17; 95% CI 1.01 to 1.35; p=0.04), as well as between PCVs and 3-day mean ozone levels before a PCV (OR=1.29; 95% CI 1.00 to 1.46; p=0.04), from April until June.

The mean ozone level during the entire follow-up period (41.06 ppb) was lower than the mean concentration in the ozone season (50.62 ppb) (data not shown).

Since 1980, national average ozone levels have gone down 33percentt.

The article presents modeling of daily average ozone level prediction by means of neural networks, support vector regression and methods based on uncertainty.

Based on data obtained, the daily average ozone level prediction in a certain time is characterized by a root mean squared error.

The losses above the Arctic mean that ozone levels over Europe will be thinner in the next few weeks.