Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/93338
Authors: 
Jans, Jenny
Johansson, Per
Nilsson, Peter
Year of Publication: 
2014
Series/Report no.: 
IZA Discussion Paper 7929
Abstract: 
On normal days, the temperature decreases with altitude, allowing air pollutants to rise and disperse. During inversion episodes, a warmer air layer at higher altitude traps pollutants close to the ground. We show how readily available NASA satellite data on vertical temperature profiles can be used to measure inversion episodes on a global scale with high spatial and temporal resolution. Then, we link inversion episode data to ground level pollution monitors and to daily in- and outpatient records for the universe of children in Sweden during a six-year period to provide instrumental variable estimates of the effects of air quality on children's health. The IV estimates show that the respiratory illness health care visit rate increases by 8 percent for each 10 μm/m³ increase in PM10; an estimate four times higher than conventional estimates. Importantly, by linking the health care data to detailed records of parental background characteristics, we show that children from low-income households suffer significantly more from air pollution than children from high income households. Finally, we provide evidence on the importance of several mechanisms that could contribute to the difference in the impact of air pollution across children in rich and poor households.
Subjects: 
instrumental variable
environmental policy
inversions
health
air pollution
nonparametric regression
socio-economic gradient in health
JEL: 
Q53
I1
I3
J24
Document Type: 
Working Paper

Files in This Item:
File
Size
912.23 kB





Items in EconStor are protected by copyright, with all rights reserved, unless otherwise indicated.