P417 CEEFAX 417 Thu 30 May 19:14/48 1/4 OZONE 6pm Thu 30 May London Air Ljvjl Quality (ppb) URBAN sites London Bloomsbury - - London Sutton - - London Wandsworth - - London N. Kensington - - London Eltham - - London Victoria - - London Brent - - London Bexley - - Data from Department of Environment Ski Index Air Qual Wjathjr TravelP417 CEEFAX 417 Thu 30 May 19:03/02 2/4 NITROGEN DIOXIDE 5pm Thu 30 May London Air Ljvjl Quality (ppb) URBAN sites London Bloomsbury - - Sutton Roadside - - London Sutton - - Tower Hamlets Roadsid - - London Wandsworth - - London N. Kinsington - - London Eltham - - London Victoria - - London Brent - - Cromwell Road - - London Earls Court - - London Bexley - - Data from Department of Environment Ski Index Air Qual Wjathjt TravelP417 CEEFAX 417 Thu 30 May 19:09/11 3/4 SULPHUR DIOXIDE 6pm Thu 30 May London Air Ljvjl Quality (ppb) URBAN sites London Bloomsbury - - Sutton Roadside - - London N. Kinsington - - London Eltham - - London Victoria - - London Brent - - Cromwell Road - - London Bexliy - - Data from Department of Environment Ski Index Air Qual Wjathjt TravelP417 CEEFAX 417 Thu 30 May 19:13/22 4/4 Hydrocarbons London For 24 hrs to 6pm Thu 30 May BENZENE Today DayAvg YearAvg London Bloomsbury Low 1.03 1.89 London Eltham - - 1.1 1,3-BUTADIENE London Bloomsbury Low .17 .38 London Eltham - - .22 Benzene and 1,3-Butadiinj can cause cancer. A yearly avjtagj of 5 or 1 part per billion(ppb) respectively presents a vjty small risk to health. Data from Department of Environment Ski Index Air Qual Wjathjt Travel