Some studies have shown that synergistic effects of NO2 and O3 may exist (Kagawa

and Tsuru, 1978). NO2 and O3 in combination are suspected to exacerbate the allergic

reactions to inhaled allergens. Similar responses are shown in animal studies (see for

example Abraham et al. 1983, Matsura 1970 a,b,c. and Yanai et al. 1990). In the

recently presented Europe-wide study on "Short Term Effects of Air Pollution on

Health: a European approach using epidemiological time series data” - The APHEA

project, (St Leger, 1996, ed.) epidemiological effects, particularly mortality and

hospital admission were analysed from the air pollution perspective. Relations

between pollution levels and health effects were observed, but the role of NO2 was not

clear.

 

 

 

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