L'impacte de la qualitat de l’aire · •Polítiques de mobilitat basades en salut . Ambient...
Transcript of L'impacte de la qualitat de l’aire · •Polítiques de mobilitat basades en salut . Ambient...
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Guió
• L’aire de les ciutats
• Efectes sobre la salut
• Polítiques de mobilitat basades en salut
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Ambient Aerosols
Gases and primary particles
Organic compounds
Soot particles
Metals
Secondary particles
Crustal material
Biological material
……
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Brook et al. 2004
Ambient particulate matter (PM) is defined by its size
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. .
Bronchial epithelium
10µm 1 µm 0.1µm
Courtesy: K. Donaldson & A. Peters
Size matters for the translocation
Alveolar macrophage
Zimmermann
Karg
Cyrys
Behrendt/Allessandrini
Schulz
Peters
Wolff
Schramm
Maier
AndraeWittmaack
Zimmermann
Karg
Cyrys
Behrendt/Allessandrini
Schulz
Peters
Wolff
Schramm
Maier
AndraeWittmaack
1 µm 10 µm
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Maher BA. Magnetite pollution nanoparticles in the human brain. PNAS 2016
,
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35 30 25 20 15 10
0.9
1.0
1.1
1.2
1.3
• Portage, W • Topeka, KS
• Waterown, MA (Boston)
• Harriman, TN (Knoxville) • St. Louis, MO
• Stebenville, OH
Long-term mortality. 6 cities, Dockery 1993
The six cities study:
PM2.5 –MORTALITY (Dockery , NEJM 1993)
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WHO
AQG
EU
Limit
Value
US EPA
Standard
ACS cohort: Guidelines for PM2.5
Pope et al 2002
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Long-term Exposure to Fine Particles and Coronary Artery Calcification Progression
Kaufmann et al. Lancet 2016
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Health Effects of Fine Particles: Lines that Connect (Pope et Dockery 2006)
Mechanisms by which exposure to PM damages our health
Brook RD 2010.
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Particulate air pollution causes 3.5 million deaths
WHO 2014
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Economical* impact by region, 2013 (World
bank 2016)
* welfare losses
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Insulin Resistance Type 2 diabetes Type 1 diabetes Bone metabolism
Skin Aging
Stroke Neurological development Mental Health Neurodegenerative diseases
Cardiovascular Disease Mortality Cardiovascular Disease Morbidity Myocardial Infarction Arrhythmia Congestive Heart Failure Changes in Heart Rate Variability ST-Segment Depression
Premature Birth Decreased Birth Weight Decreased foetal growth In uterine growth retardation Decreased sperm quality Preclampsia
High blood pressure Endothelial dysfunction Increased blood coagulation Systemic inflammation Deep Venous Thrombosis
Respiratory Disease Mortality Respiratory Disease Morbidity Lung Cancer Pneumonia Upper and lower respiratory symptoms Airway inflammation Decreased lung function Decreased lung growth
Joint ERS / ATS statement (ERJ 2017)
Air pollution affects multiple organs immediately and has long-term consequences
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Developing fetus is susceptible to environmental insults
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Reproductive and developmental effects of pre-natal air pollution
- Effects on fetus
Fetal growth
Length of gestation
Congenital anomalies
Stillbirth
Neurodevelopment
Lung function
- Effects on mother
Pregnancy-induced hypertensive disorders
Gestational diabetes
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The BREATHE project: BRain dEvelopment and Air polluTion ultrafine particles in scHool childrEn
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School study
• Schools stratified by traffic pollution
• Match each pair by similar social context
• Two sampling periods of one week by season
• Five monitoring stations at the same time: in/out & high/low, fixed site
• 39 schools, 1,092 PM filters during 2012
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SCHOOL ELEMENTAL CARBON (µg/m3) IN-OUT BY SEASON
y = 0,7558x + 0,1409 R² = 0,8442
y = 0,9083x + 0,0471 R² = 0,8374
0
1
2
3
4
5
6
0 1 2 3 4 5 6
IN
OUT
Cold Season Warm Season
Rivas I, 2014 0
2000
4000
6000
8000
10000
12000
14000
16000
18000
27/01 28/01 29/01 30/01 31/01 01/02 02/02 03/02 04/02
BC [n
g/m
3 ]
SC-8
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• All school children (n=4,085) without special needs in grades 2 - 4 (7-10 years of age)
• 2,897 (59%) agreed
• 10,112 computerized cognitive tests
• Every 3 months (4 repeats) tests
Neuropsychological study
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Working memory yearly development by low (—) and high (- -) traffic
pollution (95% CI)
Adjusted for sex, maternal education, residential neighbourhood socio-economic status and school pair; school and subject as nested random effects.
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Indoor Outdoor
sulphate 0.52 (-2.4, 3.4) -0.31 (-3.9, 3.3)
mineral 0.8 (-2.2, 3.8) 4.1 (0.81, 7.4) *
nitrate 0.61 (-1.4, 2.6) 2.5 (-0.38, 5.4)
traffic -5.1 (-9.2, -1.1) * -3.6 (-6.6, -0.63) *
metallurgy 0.18 (-2.6, 2.9) 1.6 (-1.1, 4.3)
heavy oil 0.53 (-2.2, 3.3) -1.2 (-4.3, 1.8)
organic/textile/chalk 0.37 (-2.1, 2.9) -0.1 (-4.2, 4)
sea salt -1.4 (-4.6, 1.9) 2.5 (-2, 6.9)
road dust 1.7 (-2.9, 6.3) 0.39 (-2.6, 3.4)
Change in cognitive growth per IQR increase in PM2.5 sources (Basagaña, EHP 2016)
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Noise and air pollution on behaviour (SDQ) and ADHD symptoms (Forns, EHP 2015)
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Interventions: % of days above standards in Los
Angeles (US)
1976 1990 2002
75%
50%
25%
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Diagnosis
• Tenim la diagnosi ben feta
• Una ciutat amb l’aire contaminat
• La contaminació s’origina sobretot pel tràfic
• La contaminació originada pel tràfic és un problema de salut de dimensions importants
• Ara toca trobar solucions.
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Efectes secundaris del vehicle a motor URBÀ
• Contaminació aire
• Soroll
• Manca exercici físic
• Ocupació de l’espai (verd)
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Intervenció • Vehicle urbà:
– Bicicleta (elèctrica)
• Compartir el transport – Més i millor transport públic – ‘net’
• Transport mercaderies ‘net’ • Reduir vehicles privats
– Corredors verds – Carrils bici – Super-illes
• Cars free cities
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Intervenció ‘cars free cities’
• Més i millor transport públic
• Reduir vehicles privats
– Corredors verds
– Carrils bici
– Super-illes
• Vehicles (transport públic, mercaderies)
nets
COMPARTIR