Issues: Air

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Premature Mortality Due to Particulate Air Pollution in 239 American Cities


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Washington: Particulate Air Pollution Attributable Mortality by MSA

This table identifies Metropolitan Statistical Areas in the state of Washington. For each MSA, the table shows PM-10 concentration and NRDC's estimate of air pollution attributable deaths.

The table shows the average annual mean PM-10 concentration in each MSA over the five-year period, 1990 through 1994. The higher the PM-10 concentration, the greater the risk of premature mortality from heart and lung disease.

For each MSA, we present point and range estimates of the annual adult cardiopulmonary deaths attributable to air pollution The estimates are derived by applyting a risk factor reported in a study of an American Cancer Society cohort to MSA-specific information on PM-10 concentrations and mortality from selected causes. The range estimates are derived from the confidence intervals for the risk ratio reported in the ACS study.

For the purposes of comparison, the table also shows the total number of cardiopulmonary deaths in the MSA and the number of deaths from car accidents.

Metropolitan Statistical Area Average
Annual Mean
PM-10
Concentration
(1990-1994)
(ug/m³)
Estimated Annual Cardiopulmonary Deaths
Attributable to
Particulate Air Pollution
Adult
Cardio-
Pulmonary
Deaths
(1989)
Deaths
from
Auto
Accidents
(1989)
Point
Estimate
Range Deaths per
100,000
Population
BELLINGHAM, WA 22.5 22 13 - 30 21 444 26
BREMERTON, WA 18.6 14 8 - 20 10 604 30
OLYMPIA, WA 22.9 26 15 - 36 21 507 18
PORTLAND, OR-WA 23.9 307 180 - 425 25 5,388 225
RICHLAND-KENNEWICK-PASCO, WA 30.0 45 27 - 62 31 476 29
SEATTLE-EVERETT, WA 27.7 501 296 - 690 31 6,237 281
SPOKANE, WA 38.7 220 132 - 299 64 1,516 57
TACOMA, WA 30.0 195 116 - 268 40 2,062 89
YAKIMA, WA 33.1 94 56 - 129 54 833 56

Point estimates are derived from the risk ratio reported in the ACS study. Ranges are derived from 95-percent confidence intervals around the risk ratio in the ACS study.

Metropolitan Statistical Areas are as defined by the Office of Management and Budget for 1980, except for New England, where areas are New England County Metropolitan Areas.

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