Assertion: ozone's concentration | /r/HasProperty | low
Facets:
value: very
type: DEGREE
value: often
type: DEGREE
value: in higher
type: OTHER
value: on sunny days in summer
type: TEMPORAL
Source sentences:
text: Concentrations will be higher if a more powerful device or more than one device is used, if a device is placed in a small space rather than a large space, if interior doors are closed rather than open and, if the room has fewer rather than more materials and furnishings that adsorb or react with ozone and, provided that outdoor concentrations of ozone are low, if there is less rather than more outdoor air ventilation.
text: Ozone is present in low concentrations throughout the Earth's atmosphere (stratosphere).
text: Ozone in the air and in solutions is generally kept at low concentrations because humans can detect it and are affected by it at low levels.
text: Ozone is present in low concentrations throughout the earth's atmosphere.
text: Ozone is produced from air at very low concentrations.
text: Ozone occurs in the lower atmosphere in very low concentrations, but it is present in significantly higher concentrations in the upper atmosphere.
text: Concentrations are often low in busy urban centres and higher in suburban and adjacent rural areas, particularly on sunny days in summer.
text: The absolute concentration of ozone in the atmosphere is very low: out of 10 million air molecules only 3 are ozone molecules.
text: The removal rate is slow, since the concentration of O atoms is very low.
text: Ozone occurs in the lower atmosphere in very low concentrations, but it is present in significantly higher concentrations in the upper atmosphere.