Emission standard
Emission standards are legal requirements governing air pollutants released into the atmosphere. Emission standards set quantitative limits on the permissible amount of specific air pollutants that m...
Emission standard - Wikipedia
United States emission standards
In the United States, emissions standards are managed on a national level by the Environmental Protection Agency (EPA). State and local governments may apply for waivers to enact stricter regulations...
Energy policy of China
The energy policy of China is a policy decided on by the Central Government with regard to energy and energy resources. Ensuring adequate energy supply to sustain economic growth has been a core conce...
Energy policy of China - Wikipedia
Air pollution in Hong Kong
Air pollution in Hong Kong is considered a serious problem. Visibility is less than eight kilometers for 30% of the year. Cases of asthma and bronchial infections have soared in recent years due to re...
Air pollution in Hong Kong - Wikipedia
Bharat Stage emission standards
Bharat stage emission standards are emission standards instituted by the Government of India to regulate the output of air pollutants from internal combustion engine equipment, including motor vehicle...
Bharat Stage emission standards - Wikipedia
Plug-in electric vehicle
A plug-in electric vehicle (PEV) is any motor vehicle that can be recharged from an external source of electricity, such as wall sockets, and the electricity stored in the rechargeable battery packs d...
Plug-in electric vehicle - Wikipedia
Vehicle emissions control
Vehicle emissions control is the study of reducing the motor vehicle emissions—emissions produced by motor vehicles, especially internal combustion engines.Emissions of many air pollutants have been s...
Idle reduction
Idle reduction describes technologies and practices that minimize the amount of time drivers idle their engines. Avoiding idling time has a multitude of benefits including: savings in fuel and mainten...
Low-carbon emission
The main components of automobile exhaust are carbon dioxide (CO2) and water vapor (H2O). Carbon dioxide is the most important anthropogenic greenhouse gas (GHG) and the most significant Greenhouse G...
Onboard refueling vapor recovery
Onboard refueling vapor recovery (ORVR) is a vehicle emission control system that captures fuel vapors from the vehicle gas tank during refueling. The gas tank and fill pipe are designed so that when...
Action Blue Sky Campaign
The Action Blue Sky Campaign is an environmental campaign in Hong Kong, organised by the Environmental Protection Department, to clean up the city's air pollution. It was officially launched by Chief...
Action Blue Sky Campaign - Wikipedia
AirCare (emissions program)
AirCare was a vehicle emissions testing program in place in the Lower Mainland including the Greater Vancouver Regional District and the Fraser Valley Regional District of British Columbia. The progra...
New European Driving Cycle
The New European Driving Cycle (NEDC) is a driving cycle designed to assess the emission levels of car engines and fuel economy in passenger cars (excluding light trucks and commercial vehicles). It ...
New European Driving Cycle - Wikipedia
Renewable energy in China
In 2013, China led the world in renewable energy production, with a total capacity of 378 GW, mainly from hydroelectric and wind power. As of 2014, China leads the world in the production and use of w...
Renewable energy in China - Wikipedia
Biofuel
A biofuel is a fuel that is derived from biological materials, such as plants and animals. Also biofuel can still be seen as fuel derived from organic matter (obtained directly from plants, or indirec...
Biofuel - Wikipedia
Ontario's Drive Clean
Ontario's Drive Clean is an automobile emissions control program in Ontario, Canada. The program came into being in 1999 under the Ontario Progressive Conservative Party, lead by Premier Mike Harris. ...
Super ultra-low emission vehicle
Super ultra-low emission vehicle (SULEV) is a U.S. classification for passenger vehicle emissions. The classification is based on producing 90% less emissions than an equivalent gasoline-powered vehic...
Super ultra-low emission vehicle - Wikipedia
Ultra Low Emission Vehicle
An ultra-low-emission vehicle (ULEV) is a motor vehicle that emits extremely low levels of motor vehicle emissions compared to other vehicles. In some jurisdictions it is defined in law; low and ultra...
Ultra Low Emission Vehicle - Wikipedia
Exhaust gas recirculation
In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in petrol/gasoline and diesel engines. EGR works by recirculating a portio...
Exhaust gas recirculation - Wikipedia
New Source Performance Standard
New Source Performance Standards (NSPS) are pollution control standards issued by the United States Environmental Protection Agency (EPA). The term is used in the Clean Air Act Extension of 1970 (CAA...
California Smog Check Program
The California Smog Check Program requires vehicles that were manufactured in 1976 or later to participate in the biennial (every two years) smog check program in participating counties. The program’s...
California Smog Check Program - Wikipedia
Worldwide harmonized Light vehicles Test Procedures
The Worldwide harmonized Light vehicles Test Procedures (WLTP) define a global harmonized standard for determining the levels of pollutants and CO2 emissions, fuel or energy consumption, and electric ...
Worldwide harmonized Light vehicles Test Procedures - Wikipedia
National Emissions Standards for Hazardous Air Pollutants
The National Emissions Standards for Hazardous Air Pollutants, also using the acronym NESHAP, are emissions standards set by the United States Environmental Protection Agency—EPA. The standards are fo...
Global warming
Global warming and climate change can both refer to the observed century-scale rise in the average temperature of the Earth's climate system and its related effects, although climate change can also r...
Global warming - Wikipedia
European emission standards
European emission standards define the acceptable limits for exhaust emissions of new vehicles sold in EU member states. The emission standards are defined in a series of European Union directives sta...
European emission standards - Wikipedia
Diesel exhaust fluid
Diesel exhaust fluid (DEF), commonly referred to as AdBlue in Europe, Australia, and New Zealand, and standardised as ISO 22241 is an aqueous urea solution made with 32.5% high-purity urea (AUS 32) a...
Diesel exhaust fluid - Wikipedia
Catalytic converter
A catalytic converter is a vehicle emissions control device that converts toxic pollutants in exhaust gas to less toxic pollutants by catalyzing a redox reaction (oxidation or reduction). Catalytic c...
Catalytic converter - Wikipedia
Zero emission
Zero emission refers to an engine, motor, process, or other energy source, that emits no waste products that pollutes the environment or disrupts the climate.
Vehicles and other mobile machinery u...