PAG/ASG Meeting

Monday, 14th July, 2003

University of Surrey

30BC03

PAG - Chair: Alan Robins1010-1030 Review of previous PAG meeting (24/3/03)1030-1200 Programme report1200-1230 The second field campaign

1230-1330: Lunch - EnFlo Lab1330-1430 Discussion1430-1500 Conclusions; Date of next meeting

ASG - Chair: Rex Britter1515-1530 Introduction 1530-1600 Matters from previous meeting (24/3/03)1600-1645 Plans and objectives1645-1700 Conclusions; Date of next meeting

EPSRC Consortium Project University of Surrey Alan Robins

Imperial College Roy Colvile

University of Bristol Dudley Shallcross

University of Cambridge Rex Britter

University of Leeds Margaret Bell

University of Reading Stephen Belcher

Proposal supportLondon -> APRIL/EA/Local Government

DEFRA, AEQ Division; DSTL (Porton Down), HSE; Meteorological Office

DAPPLE’s key aim is to enhance understanding of pollutant dispersion processes in realistic urban environments and thereby make possible improvements in predictive ability that will enable better planning and management of urban air quality.

DAPPLE intends to quantify determinants of human exposure to air pollution from outdoor sources, over short periods of time as sources and people move together through the urban environment, as well as over longer periods of time in roadside buildings and the urban environment in general.

Background - 1

The basic understanding gained will be used:

in the evaluation and development of appropriate decision support tools and risk assessment methodologies in the evaluation and development of best practice guidelines for their application in assessing the inherent uncertainty in their use in assessing their contribution to the sustainable development of safer, more pleasant cities.

As far as possible, DAPPLE deliverables will be of generic value and applicable both within UK urban areas and others overseas.

Background - 2

In an urban setting:

To what pollution levels are individuals exposed and what controls this?

What determines the relationship between emissions and exposure?

What are the causes of variability in mean and individual dose rates?

How do we best go about managing and improving local urban air quality?

How do pollutants move in and over a street network?

What tools are needed to deal with these matters?

How should these be developed for incident management?

Y

X

Winddirection

Transfers between streets

Transfers over roofs

Emissions modelling

Tracer experiments

Individual dose measurement

Air quality monitoring

Wind tunnel studies

Model evaluation & development

Activities

Project background and progress- plans for first field trials (28/4 - 23/5/03)

Management structure

Programme Advisory Group - role- terms of reference

Application Sub-Group - applications and requirements- six question invitation (seven replies)

PAG 24/3/03

First field trials 28/4/03 - 23/5/03

Programme report

1. First campaign, 28th April - 23rd May 2003, successfully completed.

2. Current news and project updates are on our public site at:

http:/www.dapple.org.uk

3. Second field campaign planned for:

19th April- 28th May 2004

Programme report

1. First field campaign and initial data analysis

• Introduction and summary (Sam Arnold) • Wind and weather (Adrian Dobre)• Tracer release and sampling (Dudley Shallcross)• Exposure sampling (Surbjit Kaur, Peter Walsh)• Traffic flow, traffic & pollution (James Tate)

2. Wind tunnel modelling (Hong Cheng)

3. Modelling (Marina Neophytou, Omduth Coceal)

Second field campaign

Second field campaign planned for: 19th April- 28th May 2004

An extended period to facilitate successful tracer studies.

The strategy will be more flexible to allow a wider range of wind directions to be used.

Monitoring objectives to be determined.

Other activities

Air pollution day at Westminster City Co - 1/10/2003

Science day - research event

Progress seminar - Bristol

Publications

Conferences