What does PNOS stand for?

and general dean up of large volumes of fine particulate.

and Australia contribute seven chapters on the major technologies involved in the storage and handling of particulate materials from large grains to fine cohesive materials.

4bn) contract to supply the Volkswagen Group with diesel particulate filters for the next five years.

The main pollutants recorded in 2006 were nitrogen dioxide and particulate matter.

2 mpg on the combined cycle), operates only in 4WD mode - when road conditions necessitate - and is fitted with Peugeot's industry-leading Diesel Particulate Filter System (DPFS), reducing exhaust particulate emissions to virtually zero, unlike a conventional SUV.

Trade-named Eolys, the fluid, which is called a "additive-based diesel particulate filter" (A-DPF) system, is formulated to eliminate essentially all of the particulates in exhaust gas (1 to 3 mg/km in the standardized European MVEG cycle), and, because the filter regeneration temperature is lowered by about 200[degrees]C and reduces the particulate combustion time to from two to four minutes, the diesel fuel used for combustion is minimal, thereby keeping a low level of C[O.

Levels of carbon monoxide and certain particulate at the park's west entrance at West Yellowstone, the most popular winter gate, and Old Faithful, the most popular destination, still are "well below" national ambient air-quality standards and the air quality is good, the study by the National Park Service concluded.

children living in counties that do not meet air quality standards for fine particulate matter declined from 1999 to 2004, according to the Environmental Protection Agency.