|
Two
examples from the City of Helsinki
- Helsinki's
"Action plan concerning serious air pollution
situation, traffic exhaust causing high ambient NO2 concentration".
The
City of Helsinki experienced a critical situation as regards air
pollution in December 1995 when NO2 hourly limit value (200 mg/m3) exceeded
over 18 times the acceptable limit. The air pollution was mostly caused by
traffic emissions. Helsinki then decided to elaborate a
first action plan on serious air pollution situations. This first plan was
ready in 1998. Now the City of Helsinki is in the process of
updating this action plan. It is possible that a similar situation than the one
in 1995 could happen in the wintertime in a near future. Indeed, NO2 episodes
are mostly in wintertime. However thanks to the regular monitoring of NO2
emissions, the City realised that the NO2 hourly limit value only exceeded the
acceptable limit in 1998 and it only exceeded it over 6 times.
-
Helsinki’s Action Plan 2003 on serious air pollution
situation is attached to this note.
-
Helsinki Metropolitan Area Council (YTV)'s publications on air quality are
accessible in English at the following link: http://www.ytv.fi/english/air
- Helsinki's
Action Plan Concerning Street Dust Problems
(In Finnish)
Helsinki has to
deal with dust episode every year and especially during the spring (March-May)
when the snow melts and the streets become dry. In spring 2003, the City
humidified the streets two times and this spring it had to do it only once.
"Suunnitelma katupölyhaittojen ehkäisemiseksi" is available at the following link: http://www.hel.fi/ymk/julkaisut/monisteet.html.
See also
PowerPoint attached to the note.
For
further information,
Please
contact Jari Viinanen at jari.viinanen@hel.fi
Table 1. States of readiness and actions
|
Advance warning
|
1. preparedness
|
2. preparedness
|
|
Responsibility organisations EC and YTV prepare
|
All partys prepare to realize a plan
|
Active
information to community members
|
|
Threshold: NO2
hour concentration exceeded 150 mg/m3 3 times.
Poor or very poor air
quality during few hours
|
Threshold: NO2
hour concentration exceeded 150 mg/m3
6 times.
Poor or very poor air
quality during several hours
|
Threshold: NO2
hourly limit value (200 mg/m3)
exceeded 18 times
Very poor air quality
and it improvede to be continued
|
|
YTV Environmental
Office
|
YTV Environmental
Office
|
YTV Environmental
Office
|
|
1.
NO2 concentration exceeded 150 mg/m3
(1 hour average).
2.
Crossings are measured at least in two
monitoring stations at 3 times during 6 hours.
3.
Continues forecast.
→
YTV send advance warning to EC.
|
1.
NO2 concentration exceeded 150 mg/m3
(1 hour average).
2.
Crossings are measured at least in two
monitoring stations at 6 times during 12 hours.
3.
Continues forecast.
→
YTV inform EC that 1. preparedness
limit is exceeded.
|
1.
NO2 hourly limit value 200 mg/m3
exceeded 18 times (48 h sliding scale).
2.
Raising concentrations are measured also
in other monitoring
stations.
3.
Continues forecast.
→
YTV inform EC that 2. preparedness
limit is exceeded.
|
|
Director General (dg)
|
Director General (dg)
|
|
-
Dg order transition to 1. preparedness and inform
contact person.
-
EC:s
and YTV:s public announcements (situation, might
recommend to use public transport)
|
-
Dg order transition to 2. preparedness and inform contact person.
-
EC:s public announcement (situation,
recommendation to use public transport etc.).
-
Free-of-charge public transport.
|
|
3. preparedness
|
|
Information
to community members (intensification)
Traffic
limitation
|
|
Threshold: NO2
hourly limit value (200 mg/m3)
exceeded
(transition limit
value)
Very poor air quality
several days and it it improvede
to be continued
|
|
YTV Environmental
Office
|
|
Down-town section:
1.
NO2 hourly limit value (200 mg/m3)
exceeded (98. percentile, about 175 exceeding)
2.
Raising concentrations are measured also
in other monitoring station in down-town section.
3.
Continues forecast.
→
YTV inform EC that 3. preparedness
limit is exceeded in down-town section.
|
Hole city area:
2.
Raising concentrations are measured also
in other Helsinkis monitoring station and/or Espoos or Vantaas monitoring
station.
→
YTV inform EC that 3. preparedness
limit is exceeded in hole city area.
|
|
Lord Mayor (lm)
|
Lord Mayor (lm)
|
|
-
Lm order transition to 3. preparedness in down-town section and inform contact
person.
-
Lm:s and Helsinki City Offices public
announcement (situation, recommendation to use public transport etc.).
Possibility to order limit traffic.
-
Free-of-charge public transport.
|
-
Lm order transition to 3. preparedness in hole city area and inform contact person.
-
Lm:s and Helsinki City Offices public
announcement (situation, recommendation to use public transport etc.).
Possibility to order limit traffic.
-
Free-of-charge public transport.
|
EC
= City of Helsinki Environment Centre dg
= Director General of the Environment Centre
YTV
= Helsinki metropolitan Area Counsil,
Environmental Office lm = Lord
Mayor of Helsinki
|
CONTACT
ORGANISATION
|
|
|
|
Lord Major of Helsinki
|
|
City of Helsinki Environment Centre
|
|
Helsinki City Office
Readiness
team
Information
office
|
|
Helsinki City Transport
|
|
Helsinki City Planning Department
Traffic Planning
|
|
City of
Helsinki Public Works Department
Traffic wardening
|
|
Uusimaa Regional Environment Centre
|
|
Helsinki Metropolitan Area Council (YTV)
Environmental Office
Traffic Depatrement
|
|
Police
|
|
Finnish Road Adminstration (public
roads)
|
|
VR (railway)
|
|
City of Espoo Environment Centre
|
|
City of Vantaa Environment Centre
|
|
City of Kauniainen Environment Centre
|
|
City of Sipoo Environment Centre
|
|
|
|
|
|
|
|
|
|