Air quality assessment Rotterdam Rijnmond...Sef van den Elshout Environmental problems 1960ies...
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Air quality assessment Rotterdam Rijnmond Sef van den Elshout
Transcript of Air quality assessment Rotterdam Rijnmond...Sef van den Elshout Environmental problems 1960ies...
Air quality assessment Rotterdam Rijnmond
Sef van den Elshout
Environmental problems 1960ies
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DCMR EPA Rijnmond
Environmental Management Act: licensing
and inspection (core business)
Advice on spatial planning
• Air quality and energy unit, a.o.:
• Air quality assessment (legal
framework) monitoring, modelling
• Communication to the public
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Automatic monitoring 1969 –
‘accident’ oriented
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‘Sniffing pole’ (SO2)
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AQ network 2016 - exposure
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Current monitoring sites
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Monitoring context: national air quality legislation - EU
NO2, PM10/PM2.5
Ozone, benzene, SO2, PAH, heavy metals
BC (BS), UFP (start 2017)
Air quality assessment
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Air quality assessment - 2
Regulatory AQ assessment ‘always’ based on modelling:
Assess limit value compliance / impact of new
developments
Spatial resolution: 10-100 m
Local policy scenario’s, e.g.
LEZ (BC),
Motorway A13 speed limit 80km/h,
…
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Why monitor?
Monitoring to (a.o.):
Calibrate models/modelled backgrounds
Verify emissions (compare models/monitoring)
Credibility “meten is weten”
High accuracy , high cost
Do we always need / still need the accuracy?
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Trends
0
20
40
60
80
100
120
1972 1976 1980 1984 1988 1992 1996 2000 2004 2008 2012 2016
Ind
ex
3 year m.a. relative pollutant concentrations Rijnmond
SO2
Benzene
NO2
Pb
Black Smoke
PM10
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0
10
20
30
40
50
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
PM10
Jaar gem. 1 Noord, oost2 Oost 3 Zuid-oost4 Zuid-west 5 West6 West, noord-west
Verify specific areas in the port
1
3
2 5
6
4
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Observed and predicted
evolution emission factors
0.0
0.2
0.4
0.6
0.8
1.0
1.2
2010 2012 2014 2016 2018 2020
monitoring
reported EF10-15
EF 15-20
0.0
0.2
0.4
0.6
0.8
1.0
1.2
2010 2012 2014 2016 2018 2020
monitoring
reported EF
EC
NOx
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Resolution and accuracy
0
10
20
30
40
50
60
1990 1993 1996 1999 2002 2005 2008 2011 2014
Conc
entr
atie
in µ
g/m
3
NO2 Urban background
Rijnmond
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DCMR RIVM
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Cheap sensors?
https://samenmetenaanluchtkwaliteit.nl/vuurwerk-2016-2017
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Back to the start!?
E-nose (gas sensor) alert network
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Limit values are met (almost everywhere):
Trend is more important than the exact
concentration (?)
so alternative assessment methods (remote
sensing, sensors) can be used
decision making: scale has become less
important
For the public, scale is a major issue
Conclusions
