Children’s Health Study

The Children’s Health Study (CHS) is one of the largest and most detailed studies of the long-term effects of air pollution on the respiratory health of children. More than 12,000 school children living in southern California are involved in this ongoing study. Data on their health, exposure to air pollution, and factors that affected their responses to air pollution were gathered annually from elementary through senior high school. Findings from these studies have led to changes in state and federal guidelines to improve air quality standards and urban planning decisions and better protect and improve everyone’s health. 

Data

To access the data, please the instructions found on the main Data page

Surveys

Name

Description

Fieldwork Period

Sample Size

CHS W1

Children’s Health Study Wave 1 (Year 12)

2014

2097

CHS W2

Children’s Health Study Wave 2 (Year 13)

2015

2130

CHS W3

Children’s Health Study Wave 3 (Year 14)

2017

1502

CHS W4

Children’s Health Study Wave 4 (Year 15)

2018

1654