Gazele evacuare Diesel dauneaza sistemului cardiovascular Options

[Robert]

health.yahoo.com/news/_142160

Rezumat:

TUESDAY, Dec. 20 (HealthDay News) -- Fumes belched from diesel-engines may be especially tough on the human cardiovascular system, new research reveals.
In a carefully controlled study, the arteries of healthy volunteers exposed to diesel exhaust lost part of their ability to expand, while their blood became more likely to clot.
Response to the vasodilators was reduced significantly after the diesel exposure, and levels of an enzyme that helps keep clots from forming were reduced, the researchers reported.

A number of real-world studies have linked diesel fume exposure to heart attacks and other cardiovascular problems.

It's not clear whether the findings apply to gasoline-powered engines, because their emissions are very different from those of diesel-powered engines. In particular, diesel exhaust generates 100 times more pollutant particles.

Dictionar: belched :: aruncat afara, emis, evacuat

[Robert]

Cu siguranta trebuie facuta diferenta intre poluarea provocata de motoarele conceptie veche si cele moderne, fie ele Diesel sau pe benzina.

Cred totusi ca studiul se refera la motoarele Diesel si benzina care sunt in productie in prezent, si in stare normala de functionare - nu vad nici un motiv sa fi comparat motoare Diesel din anii '70 cu cele de ultima generatie pe benzina.