NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Air Pollution and Infant Health: What Can We Learn From California's Recent Experience

Janet Currie, Matthew Neidell

NBER Working Paper No. 10251
Issued in January 2004
NBER Program(s):   HE   CH   EEE

We examine the impact of air pollution on infant death in California over the 1990s. Our work offers several innovations: First, many previous studies examine populations subject to far greater levels of pollution. In contrast, the experience of California in the 1990s is clearly relevant to current debates over the regulation of pollution. Second, many studies examine a few routinely monitored pollutants in isolation, generally because of data limitations. We examine four criteria' pollutants in a common framework. Third, we develop an identification strategy based on within zip code variation in pollution levels that controls for potentially important unobserved characteristics of high pollution areas. Fourth, we use rich individual-level data to investigate effects of pollution on infant mortality, fetal deaths, low birth weight and prematurity in a common framework. We find that the reductions in carbon monoxide (CO) and particulates (PM10) over the 1990s in California saved over 1,000 infant lives. However, we find little consistent evidence of pollution effects on fetal deaths, low birth weight or short gestation.

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Document Object Identifier (DOI): 10.3386/w10251

Published: Currie, Janet and Matthew Neidell. "Air Pollution And Infant Health: What Can We Learn From California's Recent Experience?," Quarterly Journal of Economics, 2005, v120(3,Aug), 1003-1030. citation courtesy of

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