Remove 2000 Remove 2017 Remove Exhaust Remove Pollution
article thumbnail

Study finds that replacing older, highly polluting school buses could lead to 1.3 million fewer daily absences annually

Green Car Congress

Replacing all of the oldest, highly polluting school buses in the US could lead to 1.3 The suspected cause of these preventable absences is exposure to high levels of diesel exhaust fumes, which can leak into school bus cabins or enter buses through open windows. On average, they found that districts with upgraded buses had a 0.06

Pollution 170
article thumbnail

Mercedes-Benz powering ahead with €3B strategic engine initiative; increasing electrification, 48V; diesel and gasoline; cylinder deactivation

Green Car Congress

The new six-cylinder in-line engine comes with an intelligent form of turbocharging: assisted by the ISG at start-off, the electric auxiliary compressor (eZV) guarantees immediate high torque when driving off and accelerating, bridging the time before the large exhaust turbocharger cuts in. Almost imperceptible restart of the engine.

Gasoline 150
article thumbnail

ICCT study finds real-world NOx emissions from Euro 6 diesels ~7x higher than Euro 6 regulatory levels

Green Car Congress

The permissible limit for NO x emissions from diesel cars declined from 500 milligrams per kilometer (mg/km) under Euro 3 (effective January 2000) to 80 mg/ km under Euro 6 (effective September 2014). going up a slight incline), or to normal regeneration events in the diesel exhaust aftertreatment systems. Source: ICCT.

Diesel 344