Assertion: smog's pollutant | /r/HasProperty | emitted
Facets:
value: during the smoggy period
type: TEMPORAL
value: each day
type: TEMPORAL
value: directly
type: MANNER
Source sentences:
text: Primary pollutants are emitted directly from a source, such as emissions of sulfur dioxide from coal combustion.
text: According to the UK's Met Office, the following pollutants were emitted each day during the smoggy period: 1,000 tonnes of smoke particles, 140 tonnes of hydrochloric acid, 14 tonnes of fluorine compounds, and 370 tonnes of sulfur dioxide which may have been converted to 800 tonnes of sulphuric acid.