PhoNO - Nitrogen Dioxide Systems Brochure

Nitrogen dioxide (NO₂) is a regulated criteria toxic gas (US-EPA)¹ which is harmful to public health and the environment. Studies show that between 6 and 45% NO₂ overestimation² occurs, resulting from an inability to provide true NO₂ measurement by existing CLD monitors. Accurate and reliable quantification of atmospheric trace gases are necessary for achieving two primary objectives: