Difference between revisions of "Persistent"

From Coastal Wiki
Jump to: navigation, search
(ref)
 
 
(4 intermediate revisions by one other user not shown)
Line 1: Line 1:
 
{{
 
{{
Definition|title= Persistent
+
Definition|title= persistent
|definition= Persistency is one of 3 important criteria used to asses the environmental impact of a chemical substance. The other 2 are [[bioaccumulation]] and [[toxic|toxicity]]. According to OSPAR criteria a supstance is considered to pesist in the marine environment when has a [[half-life]] above 50 days. <ref>[http://www.ospar.org/documents/dbase/decrecs/agreements/05-09e_Cut-off-value%20agreement.doc OSPAR CONVENTION 2005, Cut-Off Values for the Selection Criteria of the OSPAR Dynamic Selection and Prioritisation Mechanism for Hazardous Substances ]</ref>}}
+
|definition= The persistence of a substance reflects the potential for the substance to reach the marine environment and to be transported to remote areas as well as the potential for long-term exposure of organisms. <ref name = d>[https://www.ospar.org/convention/agreements/page2?t=32281&a=7455 OSPAR CONVENTION Dynamic Selection and Prioritisation Mechanism for Hazardous Substances ]</ref>}}
 +
 
 +
===Notes===
 +
 
 +
Persistence is one of 3 important criteria used to asses the environmental impact of a chemical substance. The other 2 are [[bioaccumulation]] and [[toxic|toxicity]]. According to OSPAR criteria a substance should be considered persistent, if it is likely to end up in the marine environment with a [[half-life]] above 50 days. <ref name = d> [http://www.ospar.org/documents/dbase/decrecs/agreements/05-09e_Cut-off-value%20agreement.doc OSPAR CONVENTION 2005, Cut-Off Values for the Selection Criteria of the OSPAR Dynamic Selection and Prioritisation Mechanism for Hazardous Substances ]</ref>
  
 
==References==
 
==References==
 
<references/>
 
<references/>
 +
 +
[[Category:Coastal and marine pollution]]

Latest revision as of 16:29, 4 August 2020

Definition of persistent:
The persistence of a substance reflects the potential for the substance to reach the marine environment and to be transported to remote areas as well as the potential for long-term exposure of organisms. [1]
This is the common definition for persistent, other definitions can be discussed in the article

Notes

Persistence is one of 3 important criteria used to asses the environmental impact of a chemical substance. The other 2 are bioaccumulation and toxicity. According to OSPAR criteria a substance should be considered persistent, if it is likely to end up in the marine environment with a half-life above 50 days. [1]

References

  1. 1.0 1.1 OSPAR CONVENTION Dynamic Selection and Prioritisation Mechanism for Hazardous Substances Cite error: Invalid <ref> tag; name "d" defined multiple times with different content