Report - 10 years since Dieselgate The scandal explained

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Video - What Are Catalytic Converters | Environment | Chemistry | FuseSchool

Video - How Engine Emission Controlled By a Catalytic Converter?

Journal Article - Limited impact of diesel particle filters on road traffic emissions of ultrafine particles

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Belching Smoke from Trucks, "Coal Rolling"

There is a new menace on America’s roads: diesel truck drivers who soup up their engines and remove their emissions controls to “roll coal,” or belch black smoke, at pedestrians, cyclists and unsuspecting Prius drivers. Sgt. Chris Worthington of the Montrose Police Department here is out to stop them. “You can hear those trucks across town, driving like idiots,” he said on a recent Friday evening patrol. He is among the first law enforcement officers in the country to be trained at “smoke school” to pick up the skills to police the coal rollers. He lost sight of one truck cruising in the opposite direction, trailing plumes of smoke. But another, a Ram 3500 fitted with two steel smokestacks, was parked in a Walmart parking lot. The owner, Pryce Hoey, insisted his truck was emissions compliant, but nevertheless agreed to demonstrate its smoke-generating prowess. “I just wanted something different,” Mr. Hoey said, revving the engine and releasing two black pillars of smoke into the evening air before Sgt. Worthington shut him down. “People who see it giggle. They think it’s funny.” Depending on whom you ask, rolling coal is a juvenile prank, a health hazard, a stand against rampant environmentalism, a brazen show of American freedom. Coal rollers’ frequent targets: walkers, joggers, cyclists, hybrid and Asian cars and even police officers. A popular bumper sticker reads “Prius Repellent.”

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What is a Diesel Particle Filter (DPF)?

A diesel particulate filter (or DPF) is a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine. In Europe, the exhaust emissions standards for new cars have effectively required fitment of a DPF in the exhaust of all diesel cars since 2009, when the 'Euro 5' standard came into force. In fact, many cars registered before 2009 will have had one fitted too in anticipation of the change in standards. Standards aim to deliver an 80% reduction in diesel particulate (soot) emissions.

Can India adapt DPF's to control PM pollution from diesel vehicles?
An analysis was presented as part of the India-California Air Quality Management (ICAMP) program assessment report.

Road Ministry of India Proposes to Scrap all Trucks and Buses More Than 8 Years Old

Pollution Due to Trucks - Gross Polluters in Bangkok

Pollution Due to Trucks - Gross Polluters in Delhi

Pollution Due to Trucks - Kolkata & Dhaka