The data indicate that at least 21 million people in Europe are exposed to daily NO2

concentrations above the WHO AQG (1987) level, 150 mg.m-3 If these data represent

the air quality in cities where no measurements are made, 20% of the European urban

population are exposed to levels exceeding the WHO AQG (1987). However, parts of

the population may be exposed to higher levels of indoor NO2 pollution. In 1996

WHO adopted new air quality guidelines, including a one-hour guideline of 200

mg/m3 and an annual guideline of 40 mg/m3 for NO2.

The Auto-Oil study was carried out in Athens, Cologne, London, Lyons, Madrid,

Milan and The Hague. Data available from 1980 onwards showed that one or more

EU or WHO air quality objectives have been exceeded on occasion in all of the cities

studied. Air quality modelling carried out as part of the work indicates the emission

reduction necessary to comply with the new WHO-AQG for NO2 in some European

cities. Between 20 and 50% NOx emission reduction is necessary; the highest figure

relates to cities in southern Europe (Auto Oil Report, 1996).

 

 

 

401 - 402 - 403 - 404 - 405 - 406 - 407 - 408 - 409 - 410 - 411 - 412 - 413 - 414 - 415 - 416 - 417 - 418 - 419 - 420 - 421 - 422 - 423 - 424 - 425 - 426 - 427 - 428 - 429 - 430 - 431 - 432 - 433 - 434 - 435 - 436 - 437 - 438 - 439 - 440 - 441 - 442 - 443 - 444 - 445 - 446 - 447 - 448 - 449 - 450

 

     Flag of Portugal 

 english:

 castellano: DISPER CUSTIC DESCAR RADIA    italiano:     

 

 français:    português:  

 

deutsch:

 

 

 

deutsch: DIS CUS  DES  RAD

castellano: DIS CUS DES  RAD   english: DIS CUS DES RAD  

 

 português: DIS CUS DES RAD   italiano:   DIS CUS  DES RAD

 

français:  DIS CUS DES RAD