ERF for short term PM2.5 exposure and restricted activity days (RADs)
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Contents
Scope
This includes a verbal definition of the spatial, temporal, and other limits (system boundaries) of the variable. The scope is defined according to the use purpose of the assessment(s) that the variable belongs to.
Exposure-response function for short-term (acute) exposure to ambient air particulate matter (PM) with an aerodynamic diameter < 2.5 µm and restricted activity days (RADs). RAD is defined as a day when a person needs to change his/her normal activities because of ill-health. It is based on surveys among general population. In terms of severity, RADs include: 1) days needed to stay in bed, 2) days of work/school (WLS) and 3) days of other, less serious restrictions on normal activity (MRADs).
Dimensions and boundaries relevant for the variable
- Age of exposed population
- Country/other geographic area
Definition
Data
Description of the data used for obtaining the value of the variable (e.g. measurement data; mathematical method and its parameters). Please include references (preferably using the <ref></ref> tags) and links to original data, as appropriate.
Ostro (1987) [1]
- Restricted activity days (RADs) among adults aged 15-64:
- 0.475% (95% Cl 0.417%, 0.533%) increase in RADs per 1 µg/m3 PM2.5
- change of 902 RADs (95% Cl 792, 1013) per 10 µg/m3 PM2.5 per 1000 adults
- Assumes a background rate of 19 RADs per person per year, equivalent to a prevelance of 5.2%[2]
Causality
List of upstream variables. The variables can be listed used descriptive (free-format) names or unambiguous identifiers (e.g. Analytica IDs).
Unit
Unit in which the result is expressed.
Increase in no. of RADs per 10 µg/m3 increase in exposure
Formula
Algebra or other explicit methods if possible (e.g. Analytica code between the ''<anacode></anacode>'' delimiters).
Result
If possible, a numerical expression or distribution.
Age group | RADs | 95% Cl |
---|---|---|
15-64 | 902 | 792, 1013 |
See also
Links to relevant information that does not belong to Definition.
- Service Contract for Carrying out Cost-Benefit Analysis of Air Quality Related Issues, in particular in the Clean Air for Europe (CAFE) Programme. Volume 2: Health Impact Assessment. AEA Technology Environment, 2005.
- NEEDS - New Energy Externalities Developments for Sustainability, Deliverable 3.7 "A set of concentration-response function", Integrated Project, Sixth Framework Programme, Project no. 502687.
References
Will appear here automatically, if cited above using the <ref></ref> tags. Additional references can also be listed here.
- ↑ Ostro BD (1987). Air pollution and morbidity revisited: a specification test. J Environ Econ Manage, 14: 87-98.
- ↑ ORNL/RFF (1994). Estimating Externalities of the Coal Fuel Cycle. Report 3 on the external costs and benefits of fuel cycles. A study by the US department of Energy and the Commission of the European Communities. Prepared by Oak Ridge National Laboratory and Resources for the Future. McGraw Hill.