Comparação de duas metodologias de amostragem atmosférica com ferramenta estatística não paramétrica
In atmospheric aerosol sampling, it is inevitable that the air that carries particles is in motion, as a result of both externally driven wind and the sucking action of the sampler itself. High or low air flow sampling speeds may lead to significant particle size bias. The objective of this work is the validation of measurements enabling the comparison of species concentration from both air flow sampling techniques. The presence of several outliers and increase of residuals with concentration becomes obvious, requiring non-parametric methods, recommended for the handling of data which may not be normally distributed. This way, conversion factors are obtained for each of the various species under study using Kendall regression.
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Digital revista |
| Language: | Portuguese |
| Published: |
Sociedade Brasileira de Química
2005
|
| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000200002 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
oai:scielo:S0100-40422005000200002 |
|---|---|
| record_format |
ojs |
| spelling |
oai:scielo:S0100-404220050002000022005-05-04Comparação de duas metodologias de amostragem atmosférica com ferramenta estatística não paramétricaNunes,Maria JoãoCamões,Maria FilomenaMcGovern,FrancisSantos,SebastiãoRaes,Frank atmospheric sampling aerosol analysis non-parametric statistics In atmospheric aerosol sampling, it is inevitable that the air that carries particles is in motion, as a result of both externally driven wind and the sucking action of the sampler itself. High or low air flow sampling speeds may lead to significant particle size bias. The objective of this work is the validation of measurements enabling the comparison of species concentration from both air flow sampling techniques. The presence of several outliers and increase of residuals with concentration becomes obvious, requiring non-parametric methods, recommended for the handling of data which may not be normally distributed. This way, conversion factors are obtained for each of the various species under study using Kendall regression.info:eu-repo/semantics/openAccessSociedade Brasileira de QuímicaQuímica Nova v.28 n.2 20052005-03-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000200002pt10.1590/S0100-40422005000200002 |
| institution |
SCIELO |
| collection |
OJS |
| country |
Brasil |
| countrycode |
BR |
| component |
Revista |
| access |
En linea |
| databasecode |
rev-scielo-br |
| tag |
revista |
| region |
America del Sur |
| libraryname |
SciELO |
| language |
Portuguese |
| format |
Digital |
| author |
Nunes,Maria João Camões,Maria Filomena McGovern,Francis Santos,Sebastião Raes,Frank |
| spellingShingle |
Nunes,Maria João Camões,Maria Filomena McGovern,Francis Santos,Sebastião Raes,Frank Comparação de duas metodologias de amostragem atmosférica com ferramenta estatística não paramétrica |
| author_facet |
Nunes,Maria João Camões,Maria Filomena McGovern,Francis Santos,Sebastião Raes,Frank |
| author_sort |
Nunes,Maria João |
| title |
Comparação de duas metodologias de amostragem atmosférica com ferramenta estatística não paramétrica |
| title_short |
Comparação de duas metodologias de amostragem atmosférica com ferramenta estatística não paramétrica |
| title_full |
Comparação de duas metodologias de amostragem atmosférica com ferramenta estatística não paramétrica |
| title_fullStr |
Comparação de duas metodologias de amostragem atmosférica com ferramenta estatística não paramétrica |
| title_full_unstemmed |
Comparação de duas metodologias de amostragem atmosférica com ferramenta estatística não paramétrica |
| title_sort |
comparação de duas metodologias de amostragem atmosférica com ferramenta estatística não paramétrica |
| description |
In atmospheric aerosol sampling, it is inevitable that the air that carries particles is in motion, as a result of both externally driven wind and the sucking action of the sampler itself. High or low air flow sampling speeds may lead to significant particle size bias. The objective of this work is the validation of measurements enabling the comparison of species concentration from both air flow sampling techniques. The presence of several outliers and increase of residuals with concentration becomes obvious, requiring non-parametric methods, recommended for the handling of data which may not be normally distributed. This way, conversion factors are obtained for each of the various species under study using Kendall regression. |
| publisher |
Sociedade Brasileira de Química |
| publishDate |
2005 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000200002 |
| work_keys_str_mv |
AT nunesmariajoao comparacaodeduasmetodologiasdeamostragematmosfericacomferramentaestatisticanaoparametrica AT camoesmariafilomena comparacaodeduasmetodologiasdeamostragematmosfericacomferramentaestatisticanaoparametrica AT mcgovernfrancis comparacaodeduasmetodologiasdeamostragematmosfericacomferramentaestatisticanaoparametrica AT santossebastiao comparacaodeduasmetodologiasdeamostragematmosfericacomferramentaestatisticanaoparametrica AT raesfrank comparacaodeduasmetodologiasdeamostragematmosfericacomferramentaestatisticanaoparametrica |
| _version_ |
1756387136337084416 |