| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZGivnK2Y/Qjya3 |
| Repository | sid.inpe.br/mtc-m17@80/2007/06.01.13.57 (restricted access) |
| Last Update | 2007:06.01.13.57.24 (UTC) administrator |
| Metadata Repository | sid.inpe.br/mtc-m17@80/2007/06.01.13.57.26 |
| Metadata Last Update | 2022:03.26.18.01.01 (UTC) administrator |
| Secondary Key | INPE-14730-PRE/9701 |
| ISSN | 1352-2310 |
| Citation Key | BourotteCuFoPeBrLo:2007:AsIoCo |
| Title | Association between ionic composition of fine and coarse aerosol soluble fraction and peak expiratory flow of asthmatic patients in Sao Paulo city (Brazil)  |
| Year | 2007 |
| Secondary Date | 20070601 |
| Month | MAR |
| Access Date | 2024, Apr. 27 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 484 KiB |
| 2. Context | |
| Author | 1 Bourotte, Christine 2 Curl-Amarante, Ana Paula 3 Forti, Maria Cristina 4 Pereira, Luiz A. A 5 Braga, Alfesio L 6 Lotufo, Paulo A |
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JHR6 |
| Group | 1 2 3 DMA-INPE-MCT-BR |
| Affiliation | 1 Universidade de Saõ Paulo (USP), NUPEGEL 2 Universidade de Saõ Paulo (USP), NUPEGEL 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Núcleo de Estudos em Epidemiologia Ambiental, USP 5 Núcleo de Estudos em Epidemiologia Ambiental, USP 6 Universidade de São Paulo (USP) |
| Journal | Atmospheric Environment |
| Volume | 41 |
| Number | 10 |
| Pages | 2036-2048 |
| History (UTC) | 2007-06-26 13:59:29 :: estagiario -> administrator :: 2008-06-29 02:33:36 :: administrator -> estagiario :: 2010-05-11 17:00:08 :: estagiario -> marciana :: 2011-05-29 09:36:02 :: marciana -> administrator :: 2022-03-26 18:01:01 :: administrator -> marciana :: 2007 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | PM2.5 PM2.5-10 aerosol composition major ions aqueous extracts PEF urban pollution |
| Abstract | Air pollutants are associated with adverse respiratory effects mainly in susceptible groups. This study was designed to assess the impact of the ionic composition of particulate matter on asthmatic respiratory functions in Sao Paulo city. From May to July 2002, fine and coarse particulate matter fractions were collected and their respective chemical composition with respect to major ions (Na+, Mg2+, K+, Ca2+, NH4+, Cl-, NO3- and SO42-) were determined in each aqueous-extract of fraction. The results showed predominant concentrations SO42- (48.4%), NO3- (19.6%) and NH4+ (12.5%) in the fine fraction, whereas NO3- (35.3%), SO42- (29.1%), Ca2+ (13.1%) and Cl- (12.5%) were the predominant species in the coarse 3 4 fraction. The association between the chemical components of both fractions and the daily peak expiratory flow (PEF) measurements (morning and evening) of the 33 asthmatic individuals were assessed through a linear mixed-effects model. The results showed a significant negative correlation (decrease of PEF) between morning PEF and coarse chloride (3-day moving average) and between evening PEF and coarse Na+ (3-day moving average), coarse Mg2+ (3-day moving average) and coarse NH4+ (2- and 3-day moving average). A significant negative correlation has also been observed between morning and evening PEF and Mg2+ in the fine fraction. These results suggest that some particle chemical constituents may increase the responsiveness of airways and that coarse particles that deposit in the upper airways may be more relevant for asthmatic response and irritation. However, the results do not prove a clear causal relationship. |
| Area | MET |
| Arrangement | urlib.net > BDMCI > Fonds > Produção até 2016 > DMA > Association between ionic... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | Bourotte_association.pdf |
| User Group | administrator estagiario |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher denyfinaldraft24 |
| Read Permission | deny from all and allow from 150.163 |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/46JKC45 |
| Dissemination | WEBSCI; PORTALCAPES. |
| Host Collection | lcp.inpe.br/ignes/2004/02.12.18.39 cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel documentstage doi e-mailaddress electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |