Assertion: hypophosphorous acid's concentration | /r/HasProperty | lethal
Facets:
value: over a longer period
type: TEMPORAL
Source sentences:
text: For example, a high concentration may kill in a short time, but a lower concentration either may be lethal over a longer period than is measured, or may not kill but instead affect the behaviour or the susceptibility to environmental stress cumulatively over the lifetime of the receptor.