消防员可以从烟雾研究中学到什么来促进健康管理？.pdf

1、Australias National Science AgencySmoke on the fire lineWhat can firefighters learn from smoke research for health management?Fabienne Reisen|2024 Fire Summit,Melbourne 26-27 June 2024Bushfire smoke is a complex and dynamic mixture of particles and gases.H2OCOCO2CH4PAHsDioxinsNOxNH3VOCs(benzene)Alde

2、hydesHgParticlesBC,OCHow can bushfire smoke impact health?Acute brief exposure(from seconds to hours)to high/very high concentrations of a toxic chemical Sub-acute-accumulation of chemicals or their metabolites in the body Chronic prolonged or repeated exposure over many days,months or years Cumulat

3、ive-exposure to multiple toxins present in bushfire smoke resulting in additive and/or synergistic health effectsHealth impactHazardExposureWhat factors drive smoke emissions?HazardSpecies Savanna and grassland Tropical forest Temperate forest Boreal forest Peat fires Agricultural residues average S

4、D N average SD N average SD N average SD N average SD N average SD N CO2 1660 90 31 1620 70 9 1570 130 39 1530 140 14 1590 150 6 1430 230 29 CO 69 20 50 104 39 16 113 50 47 121 47 22 260 23 6 76 55 39 CH4 2.7 2.2 49 6.5 1.6 13 5.2 2.8 37 5.5 2.5 20 9.1 1.5 6 5.7 6.0 20 VOC 5.1 5.9 14 5.6 1.5 4 13.4

5、11.8 13 6.0 2.9 8 21-0 7.6 8.0 12 Benzene 0.33 0.22 19 0.38 0.05 4 0.42 0.17 17 0.57 0.21 7 0.87-2 0.27 0.19 17 Toluene 0.19 0.14 17 0.23 0.04 4 0.27 0.15 16 0.35 0.11 6 0.45-2 0.17 0.10 17 Formaldehyde 1.23 0.65 16 2.40 0.63 3 2.04 0.70 16 1.75 0.40 4 1.07 0.44 3 1.8 0.6 8 PM2.5 6.7 3.3 20 8.3 3.3

6、9 18.5 14.4 29 18.7 15.9 5 18.9 2.3 3 8.2 4.4 18 OC 3.0 1.5 15 4.4 1.9 5 10.9 7.2 13 5.9 2.5 3 14.2-2 4.9 3.6 20 BC or EC 0.53 0.35 18 0.51 0.34 8 0.55 0.36 14 0.43 0.21 4 0.10-3 0.42 0.28 24 Andreae(2019)Atmos.Chem.Phys.,19,85238546,https:/doi.org/10.5194/acp-19-8523-2019 EFs for pyrogenic species