Assertion: smog's component | /r/HasProperty | nitrogen oxides
Facets:
Source sentences:
text: Components of smog include ground-level ozone, nitrogen oxides (NOx), volatile organic compounds (VOC), sulfur dioxide, acidic aerosols and gases, and particulate matter.
text: Other components of smog include nitrogen oxides, Volatile Organic Compounds (VOCs), and PAN (peroxyacetyl nitrate).