A chronic health effect is
an adverse health effect resulting from long-term exposure
or a persistent adverse health effect resulting from a short-term exposure.
What are examples of chronic effects?
Common chronic health effects include
skin rash, bronchitis and cancer
. A common chronic health effect is cancer resulting from smoking. The onset of health effects from smoking is gradual, increasing in severity over many years.
What is a chronic effect?
An adverse effect on a human or animal body
, with symptoms which develop slowly over a long period of time. Also, see “Acute”.
What is acute and chronic effects?
Generally, the terms “acute” and “chronic” are
used to delineate between effects on the basis of severity or duration
. “Acute” effects usually occur rapidly as a result of short-term exposures, and are of short duration. “Chronic” effects generally occur as a result of long-term exposure, and are of long duration.
What’s an acute effect?
ACUTE EFFECT:
Health effects that usually occur rapidly, as a result of short-term exposure
. ACUTE TOXICITY: Acute effects resulting from a single dose of, or exposure to, a substance.
What is an example of chronic toxicity?
Chronic toxicity is generally thought of as frequent exposures where effects may be delayed (even for years) and are generally irreversible. Chronic toxicity can also result in acute exposures, with long term chronic effects. An example of chronic toxicity relates to
cigarette smoking and lung cancer
.
Is chronic or acute worse?
Broadly speaking, acute conditions occur suddenly, have immediate or rapidly developing symptoms, and are limited in their duration (e.g., the flu). Chronic conditions, on the other hand, are long-lasting. They develop
and potentially worsen over time
(e.g., Crohn’s disease).
What is a chronic hazard?
The potential for injury or damage to occur as a result of prolonged exposure to an undesirable condition
(e.g., smoking, with the potential for causing lung cancer).
What are the effects of exposure?
Effects, such as
skin burns
, that only appear at relatively high doses. Deterministic effects are also referred to as harmful tissue reactions. They include, for example, skin burns and damage to the lens of the eye.
How could chronic effects occur?
Chronic effects due
to exposure to some chemicals and substances has been experienced among workers a long time after they were exposed to it
. Some irritants can include: radio active substances, organophosphate, beryllium, asbestos, hydrogen sulfide, biological agents, dusts, etc..
What is difference between acute and chronic exposure?
Long-term exposure is called
chronic exposure
. Either may cause health effects. Acute exposure is a short contact with a chemical. It may last a few seconds or a few hours.
What is the difference between acute and chronic pollution?
Acute chemical exposure
could be a minor event or, as in a chemical spill, be fatal. In many cases, however, the effects can be reversed after exposure has ceased. Occurring over a longer period of time than acute, chronic workplace chemical exposure often involves low levels of exposure over a long period of time.
How long is chronic exposure?
Chronic exposure refers to continuous or recurring exposure to hazardous substances over
a period of three months or more
. Chronic exposure can cause a veriety of long-term adverse effects.
What does delayed effect mean?
an effect that is not observed for some period of time after the event or factor that is held to have caused it
. Usually the precipitating event exerts an indirect influence by starting a process or chain of events that ultimately has a demonstrable effect. See causal latency; remote cause.
How long does an acute illness last?
Acute illnesses generally develop suddenly and last a short time,
often only a few days or weeks
. Chronic conditions develop slowly and may worsen over an extended period of time—months to years.
How would you protect yourself from accidentally ingesting chemicals?
Having a chemical on your hands and then eating or smoking are common ways that chemicals are accidentally ingested. Be certain to wash your hands thoroughly after working with hazardous chemicals. Be sure that all containers are properly labeled.
NEVER STORE CHEMICALS OF ANY SORT IN
FOOD CONTAINERS.
