Indicator Code: OZONE_H
Objective: Environmental Health
Policy Category: Environmental Health
Subcategory: Air Pollution (Effects on Humans)
Indicator Short Name: Local Ozone
Indicator Full Name: Local Ozone with Effects on Human Health
Indicator Description: Population-weighted accumulated hourly concentrations of high level ozone with a threshold of 85ppb
Units: Exceedance person ppb per capita
Country Coverage: 223
Reference Year: 2000
Target: 0 exceedance above 85 pbb
Target Source: Expert Judgment
Short Source: MOZART-2 Global Chemical Tracer Model, 2000
Source: Ozone concentrations data: MOZART-2 Global Chemical Tracer Model, The National Center for Atmospheric Research (NCAR)
Source URL: http://gctm.acd.ucar.edu/mozart/models/m2/index.shtml
Methodology: Ozone has an impact on human health and has been associated in epidemiological studies with premature mortality.
The health ozone measure was calculated using MOZART-2 data using the following method:
1) For each grid cell, for each hour in the year, the exceedance (if any) above 85 ppb was calculated.
2) The exceedance value was resampled to 30 arc seconds and overlaid with the GRUMP population data. Exceedance valus were multiplied by population total for each 30-arc-second grid cell.
3) Using zonal statistics the excedance-person-hous were summed by country.
4)The summed exceedance-person-hours were divided by total county population.
Additional Citations: Horowitz, L., et al., A global simulation of tropospheric ozone and related tracers: Description and evaluation of MOZART, version 2, J. Geophys. Res., 108(D24), 4784, doi:10.1029/2002JD002853, 24 December 2003.