Sentence examples for pollutant changed from inspiring English sources

The number of air monitors measuring a specific pollutant changed through the study years as monitors went on and off line.

Two pollutant models were also fit to evaluate how positive associations, noted for some pollutants, changed after adjusting for daily levels of other pollutants.

Geocoding and time-activity error are likely important in assessing health effects of exposure to near highway pollutants because these pollutants change rapidly in both space and time and people are moving in and out of the near highway environment.

Although air pollutant concentrations changed during inversions (decreasing for O3 and increasing for all other pollutants on inversion days versus noninversion days), there was little change in ORs when individual air pollutant concentrations were included in models.

Potential confounders were evaluated one at a time, based on whether the estimates for the pollutant associations changed by > 10%.

Isolation of such a short duration time window during pregnancy (i.e., 47 days) where air pollutant concentrations changed substantially and then returned to background levels, to study whether that was associated with a measurable difference in birth weight, has not been possible in previous epidemiologic studies.

However, as fuel use and chemical composition of air pollutants change, the contribution of outdoor pollution as a cause of cancer may also change.

Not only do average levels of individual pollutants change from season to season, but correlations between pairs of pollutants can also vary by season.

The water pollutant weight was changed for a range of ± 20% with a step size of ± 2% for each water pollutant considering a uniform probability distribution within a range of 0 1.

Our data (described in table 1) are based on a network of fixed-site monitors whose location, number and range of pollutants measured have changed over time, decreasing the quality and robustness of our exposure estimates.

The majority of the costs included are on shore, where the fund pollutants tend to change in stock pollutants.