air quality assessment rotterdam rijnmond...sef van den elshout environmental problems 1960ies...

Air quality assessment Rotterdam Rijnmond

Sef van den Elshout

Environmental problems 1960ies

22-2-2017 3

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

22-2-2017 4 4

Automatic monitoring 1969 –

‘accident’ oriented

22-2-2017 5 5

‘Sniffing pole’ (SO2)

22-2-2017 6 6

AQ network 2016 - exposure

22-2-2017 7

Current monitoring sites

22-2-2017 8

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

22-2-2017 9

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,

…

22-2-2017 10

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?

22-2-2017 11

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

22-2-2017 12

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

22-2-2017 13

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

22-2-2017 14

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

22-2-2017 15 15

DCMR RIVM

22-2-2017 16

Cheap sensors?

https://samenmetenaanluchtkwaliteit.nl/vuurwerk-2016-2017

22-2-2017 17

Back to the start!?

E-nose (gas sensor) alert network

22-2-2017 18

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

22-2-2017 19

Questions ???

Sef.vandenelshout@dcmr.nl www.luchtmeetnet.nl

www.airqualitynow.eu