RT Journal Article SR Electronic T1 The effect of short-term pre-exposure to ambient bioaerosols, anthropogenic pollutants and noise on cardiopulmonary health baseline parameters JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP P4243 VO 42 IS Suppl 57 A1 Thomas Cole-Hunter A1 Nadine Kubesch A1 David Martinez A1 Marta Cirach A1 Jordina Belmonte A1 Audrey de Nazelle A1 Mark Nieuwenhuijsen YR 2013 UL http://erj.ersjournals.com/content/42/Suppl_57/P4243.abstract AB Exposure to ambient air pollution is known to affect some health outcomes (such as asthma exacerbation and CVA); however, findings on short-term effects are inconsistent and have important implications for baseline measurements in experimental studies of acute health effects. The current study aimed to investigate the 3-day pre-exposure lag effect of ambient bioaerosols, anthropogenic pollutants and noise on cardiopulmonary baseline measurements in an experimental acute health effect study. Participants (N = 31; 58% female) had their residing addresses geo-coded for spatiotemporal modeling of NOX and PM2.5, and temporal modeling of bioaerosols and noise. Health baseline parameters (FEV1, PEF, eNO, blood pressure and pulse) were collected from each participant on four different occasions and analysed via multivariate-adjusted linear mixed modeling. FEV1 was associated with 2-day-lag NOX and PM2.5 (p < 0.04), and eNO with 3-day-lag NO2, NOX, PM2.5 (p < 0.02) levels. Further, FEV1 was associated with 1-day-lag Palmeres (p < 0.03), and with 3-day-lag Chenopodiaceae and Cupressaceae (p < 0.04) pollen levels. Furthermore, PEF was associated with 2-day-lag Artemisia and Chenopodiaceae (p < 0.02) levels. Systolic and diastolic blood pressure were associated with 3-day-lag PM2.5 (p < 0.04) and NOX (p < 0.02) levels. Further, associations were seen with pulse and 0-day-lag PM2.5 (p < 0.04), NO2 (p < 0.02) and noise (p < 0.01) levels. Pre-exposure to NOX, PM2.5, various bioaerosols and noise may compromise measurement of cardiopulmonary baseline parameters, especially in short-term experimental research of specific acute health effects.