Estimating sampling frequency in pollen exposure assessment over time.

Estimating sampling frequency in pollen exposure assessment over time. Research Abstract Details 

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Estimating sampling frequency in pollen exposure assessment over time. Abstract Text:

Junxiang Luo,Rakesh Shukla,Atin Adhikari,Tiina Reponen,Sergey A Grinshpun,Qi Zhang,Grace K LeMasters,

A time series model was fitted to the pollen concentration data collected in the Greater Cincinnati area for the Cincinnati Childhood Allergy and Air Pollution Study (CCAAPS). A traditional time series analysis and temporal variogram approach were applied to the regularly spaced databases (collected in 2003) and irregularly spaced ones (collected in 2002), respectively. The aim was to evaluate the effect of the sampling frequency on the sampling precision in terms of inverse of standard error of the overall level of mean value across time. The presence of high autocorrelation in the data was confirmed and indicated some degree of temporal redundancy in the pollen concentration data. Therefore, it was suggested that sampling frequency could be reduced from once a day to once every several days without a major loss of sampling precision of the overall mean over time. Considering the trade-offs between sampling frequency and the possibility of sampling bias increasing with larger sampling interval, we recommend that the sampling interval should take values from 3 to 5 days for the pollen monitoring program, if the goal is to track the long-term average.

Estimating sampling frequency in pollen exposure assessment over time. Publishing Authors By Initials

J Luo,R Shukla,A Adhikari,T Reponen,SA Grinshpun,Q Zhang,GK LeMasters,

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Estimating sampling frequency in pollen exposure assessment over time. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Journal of environmental monitoring : JEM

VOLUME: 8

Page Numbers: 955-62

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ISSN: 1464-0325

DAY: 27

MONTH: 06

YEAR: 2006

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LANGUAGE: eng

NlmUniqueID: 100968688

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Grant and Affiliation Information for Estimating sampling frequency in pollen exposure assessment over time.

AFFILIATION: Department of Environmental Health, Division of Epidemiology & Biostatistics, University of Cincinnati, Ohio, USA.

Country: England

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MEDLINETA: J Environ Monit

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