ABSTRACT Globally, 1.3 billion on-road vehicles consume 79 quadrillion BTU of energy,
mostly gasoline and diesel fuels, emit 5.7 gigatonnes of CO2, and emit other pollutants to …

Gaseous nitrous acid (HONO) is a critical source of hydroxyl radicals (OH) in the
troposphere. While both direct and secondary sources contribute to atmospheric HONO …

Nitrous acid (HONO) can strongly affect atmospheric photochemistry in polluted regions
through the production of hydroxyl radicals (OHs). In January 2017, a severe pollution …

Secondary aerosols are a major component of PM 2.5, yet their formation mechanisms in the
ambient atmosphere are still unclear. Based on field measurements in downtown Beijing …

Nitrous acid (HONO) is an important photochemical precursor to hydroxyl radicals
particularly in an urban atmosphere, yet its primary emission and secondary production are …

Nitrous acid (HONO) plays an important role in the budget of hydroxyl radical (• OH) in the
atmosphere. Vehicular emissions are a crucial primary source of atmospheric HONO, yet …

Nitrous acid (HONO), an important precursor of the hydroxyl radical (OH), plays a key role in
atmospheric chemistry, but its sources are still debated. The production of HONO on aerosol …

Measurements of atmospheric boundary layer nitrous acid (HONO) and nitrogen oxides (NO
x) were performed in summer 2016 inside a city centre road tunnel in Birmingham, United …

With concern in recent years about adverse health effects for populations living or spending
significant amounts of time near large roadways, an investigation of the air quality …

Nitrous acid (HONO) can powerfully influence atmospheric photochemistry by producing
hydroxyl radical (radical dot OH), which is a crucial oxidant that controls the fate of …