Associations between daily mortality in London and combined oxidant capacity, ozone and nitrogen dioxide.

ABSTRACT: Both nitrogen dioxide (NO₂) and ozone (O₃) are powerful oxidants in ambient air that are intimately linked through atmospheric chemistry and which continuously interchange over very short timescales. Based upon atmospheric chemistry alone, there is a strong, a priori, reason for considering O₃ and NO₂ together in epidemiological studies, rather than either of the two pollutants separately in single-pollutant models. This paper compares two approaches to this, using O_x, defined as O₃ + NO₂, as a single metric and also using O₃ and NO₂ together in two-pollutant models. We hypothesised that the magnitude of the association between O_x and daily mortality would be greater than for NO

SUBMITTER: Williams ML 

PROVIDER: S-EPMC4239710 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature