PMID- 15172601
OWN - NLM
STAT- MEDLINE
DCOM- 20040803
LR  - 20131121
IS  - 0045-6535 (Print)
IS  - 0045-6535 (Linking)
VI  - 56
IP  - 3
DP  - 2004 Jul
TI  - Environmental assessment of 5-ethylidene-2-norbornene using modeled and measured 
      fate and effects results.
PG  - 285-97
AB  - Several predictive models were used to assess aquatic exposure, persistence (P) 
      and potential for long-range transport (LRT) of 5-ethylidene-2-norbornene (ENB). 
      Such estimations are components of the assessment process for persistent, 
      bioaccumulative and toxic (PBT) substances, which are also referred to as 
      persistent organic pollutants (POPs). An ecological exposure assessment for ENB 
      from manufacturing activities was conducted based on physical/chemical 
      properties, monitoring data, and degradation, transport and distribution 
      estimates. Based on the results of several model predictions, chronic exposure of 
      aquatic organisms is not expected, due to the anticipated residence time of ENB 
      in aquatic ecosystems. These modeled results consistently predict ENB does not 
      present the potential to persist in the environment. Volatilization from water to 
      the air is calculated to occur at a relatively rapid rate for ENB based on its 
      Henry's Law constant. Once in the air, ENB is expected to degrade rapidly due to 
      oxidation by hydroxyl radicals and ozone based on calculated atmospheric 
      half-lives of 57 and 27 min, respectively. Additionally, ENB is not predicted to 
      undergo long-range transport based on the short atmospheric half-life due to 
      oxidation by hydroxyl radicals and ozone. Additionally, based on predicted 
      exposure from site-specific emission using the EPA model EFAST, ENB is not 
      expected to reach concentrations of concern for chronic aquatic toxicity 
      endpoints.
FAU - Lee, Carolyn
AU  - Lee C
AD  - ExxonMobil Biomedical Sciences, Inc., 1545 Route 22 East, Annandale, NJ 
      08801-0971, USA. carolyn.lee@exxonmobil.com
FAU - Caldwell, Daniel J
AU  - Caldwell DJ
FAU - Winkelmann, Douglas A
AU  - Winkelmann DA
LA  - eng
PT  - Journal Article
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Norbornanes)
RN  - 0 (Water Pollutants, Chemical)
RN  - 059QF0KO0R (Water)
RN  - 16219-75-3 (5-ethylidene-2-norbornene)
RN  - 9006-04-6 (Rubber)
SB  - IM
MH  - Air
MH  - Biodegradation, Environmental
MH  - Ecosystem
MH  - *Environmental Monitoring
MH  - Half-Life
MH  - Models, Theoretical
MH  - Norbornanes/*analysis/chemistry
MH  - Risk Assessment
MH  - Rubber/chemistry
MH  - Volatilization
MH  - Water
MH  - Water Pollutants, Chemical/*analysis
EDAT- 2004/06/03 05:00
MHDA- 2004/08/04 05:00
CRDT- 2004/06/03 05:00
PHST- 2003/06/19 00:00 [received]
PHST- 2004/01/23 00:00 [revised]
PHST- 2004/02/10 00:00 [accepted]
PHST- 2004/06/03 05:00 [pubmed]
PHST- 2004/08/04 05:00 [medline]
PHST- 2004/06/03 05:00 [entrez]
AID - S0045-6535(04)00136-5 [pii]
AID - 10.1016/j.chemosphere.2004.02.021 [doi]
PST - ppublish
SO  - Chemosphere. 2004 Jul;56(3):285-97. doi: 10.1016/j.chemosphere.2004.02.021.