Difference between revisions of "PM2.5 exposure-response function"

From Testiwiki
Jump to: navigation, search
(→‎Formula)
 
(4 intermediate revisions by 4 users not shown)
Line 1: Line 1:
 
{{variable}}  
 
{{variable}}  
−
 
−
'''Boxes with dashed borders''' contain brief guidance text for completing the entries for new variables.
 
  
 
== Scope  ==
 
== Scope  ==
  
−
ERF PM2.5 describes the relationship between cardiopulomnary mortality and exposure to PM2.5 in the Helsinki metropolitan area
+
The variable describes the relationship between cardiopulomnary mortality and personal exposure to PM2.5. The personal exposure is the time-weighted average concentration of individuals given knowledge on activity patterns and concentration in diffferent microenvironments
−
population. Both acute and chronic effects are considered. We focus particularly in particle composition related to traffic
+
{{disclink|Exposure data availability}}
−
and heating emissions.
 
  
 
== Definition  ==
 
== Definition  ==
  
 
=== Data  ===
 
=== Data  ===
−
 
+
* [[Concentration-response to PM2.5]]
−
 
+
* Studies that relate personal exposures to cardiopulmonary mortality
−
 
+
* Studies that relate personal exposures to intermediate health markers and studies on relationship between intermediary health impacts and cardiopulmonay mortality.
−
 
+
* Studies relating personal exposure to ambient concentrations and/or simulations of personal exposures given activity patterns and ambient concentrations
−
 
 
−
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 ''<nowiki><ref></ref></nowiki>'' tags)
 
−
and links to original data, as appropriate.
 
  
 
=== Causality  ===
 
=== Causality  ===
  
−
List of upstream variables.
+
no parent variables  
−
The variables can be listed used descriptive (free-format) names or unambiguous identifiers
 
−
(e.g. [[Analytica|Analytica]] IDs).
 
  
 
=== Unit  ===
 
=== Unit  ===
−
 
+
m3/ug
−
Unit in which the result is expressed.
 
−
 
 
 
=== Formula  ===
 
=== Formula  ===
−
 
+
* Transform ambient concentration to a personal exposure measure in the Pope and Dockery studies, and derive exposure-response function (which becomes our prior){{disclink|apples and oranges}}
−
Algebra or other explicit methods if possible
+
* Simulate exposure-response function from combination of exposure-intermediary health and intermiediary health - cardiopulmonary mortality studies (gives us additional information on exposure -response )
−
(e.g. [[Analytica|Analytica]] code between the ''<nowiki><anacode></anacode></nowiki>'' delimiters).
+
* Update with Bayesian rule concentration-response function with above function and with additional knowledge from other existing studies on personal exposure - cardiopulmonary mortality if/when such studies exist
  
 
== Result  ==
 
== Result  ==
−
 
−
If possible, a numerical expression or distribution.
 
  
 
== See also  ==
 
== See also  ==
−
 
−
Links to relevant information that does not belong to ''Definition''.
 
  
 
== References  ==
 
== References  ==
−
 
−
Will appear here automatically, if cited above using the ''<nowiki><ref></ref></nowiki>'' tags.
 
−
Additional references can also be listed here.
 
  
 
<references />
 
<references />

Latest revision as of 13:30, 18 February 2009


Scope

The variable describes the relationship between cardiopulomnary mortality and personal exposure to PM2.5. The personal exposure is the time-weighted average concentration of individuals given knowledge on activity patterns and concentration in diffferent microenvironments D↷

Definition

Data

  • Concentration-response to PM2.5
  • Studies that relate personal exposures to cardiopulmonary mortality
  • Studies that relate personal exposures to intermediate health markers and studies on relationship between intermediary health impacts and cardiopulmonay mortality.
  • Studies relating personal exposure to ambient concentrations and/or simulations of personal exposures given activity patterns and ambient concentrations

Causality

no parent variables

Unit

m3/ug

Formula

  • Transform ambient concentration to a personal exposure measure in the Pope and Dockery studies, and derive exposure-response function (which becomes our prior)D↷
  • Simulate exposure-response function from combination of exposure-intermediary health and intermiediary health - cardiopulmonary mortality studies (gives us additional information on exposure -response )
  • Update with Bayesian rule concentration-response function with above function and with additional knowledge from other existing studies on personal exposure - cardiopulmonary mortality if/when such studies exist

Result

See also

References

Retrieved from "http://www.opasnet.org/testiwiki/index.php?title=PM2.5_exposure-response_function&oldid=8131"