HAP Project
CARB California Activity Pattern Surveys (CAPS)
The California Air Resources Board (CARB) sponsored two activity patterns surveys in the late 1980's and early 1990's. One study was a California survey of adults and youth (n = 1742), and the other was a California survey of children (n=1200). Both these surveys measured minute-by-minute activity diaries over a 24-hour period using a computerized telephone instrument.
Human Activity Patterns
National Human Activity Pattern Survey (NHAPS)
NHAPS is a representative US human activity pattern survey of potential exposure of Americans to household air and water pollutants (n = 9,386). The complete data are available, including codebooks and questionnaires. A journal article has been published describing the survey and some results
Analysis of the National Human Activity Pattern (NHAPS) Respondents from a Standpoint of Exposure Assessment
USEPA report containing a first analysis of data from the 1992-94 National Human Activity Pattern Survey (NHAPS)
Descriptive Statistics Tables from a Detailed Analysis of the National Human Activity Pattern Survey (NHAPS) Data
USEPA report containing many descriptive statistics tables based on the diary and main data from the 1992-94 National Human Activity Pattern Survey (NHAPS).
The National Human Activity Pattern Survey (NHAPS): A Resource for Assessing Exposure to Environmental Pollutants
Article on the national human activity pattern survey (NHAPS), which interviewed 9,386 Americans by telephone on their potential exposure to household air and water contaminants
