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Short-term bioaccumulation

Reinecke, A.J. and R.G. Nash. 1984. Toxicity of 2,3,7,8-TCDD and short-term bioaccumulation by earthworms (Oligochaeta). Soil Biol. Biochem. 16 45A9. [Pg.1065]

Edel, A.L., M. Kopilas, T.A. Clark, F. Aguilar, P.K. Ganguly, C.E. Heyliger, and G.N. Pierce. 2006. Short-term bioaccumulation of vanadium when ingested with a tea decoction in streptozotocin-induced diabetic rats. Metabol. 55 263-70. [Pg.209]

ACUTE TOXICITY TESTS SHORT-TERM BIOACCUMULATION... [Pg.106]

Acute toxicity and short-term bioaccumulation. Studies of acute toxicity measure the lethal response after 24 or 96 h of exposure in various bodies of water. Test species should be chosen from amongst most commonly used organisms and standardized procedures should be applied. The test should include at least three different trophic levels, namely primary producers, primary consumers and secondary consumers. Normally, organisms such as green algae, daphnids and fish are utilized. [Pg.107]

PROBABLE FATE photolysis photolysis to quinones is rapid, but is greatly hindered by adsorption, atmospheric and aqueous photolytic half-life 1-3 hrs, in the unadsorbed state, will degrade by photolysis from hours to days oxidation oxidation by alkyl peroxy radicals could compete with photolysis dissolved benzo (a) anthracene, photooxidation half-life in water 3.2-160 days photooxidation oxidation half-life in air 0.801-8.01 hrs hydrolysis not an important process volatilization to slow to compete with sorption as a transport process sorption very strong adsorption by suspended solids is the principal transport process, when released to water, will quickly adsorb to sediment or particulate matter biological processes short-term bioaccumulation is accompanied by metabolization, biodegradation is the principal fate, but occurs slowly... [Pg.241]

PROBABLE FATE photolysis very little specific data, but photolysis may claim some of the dissolved compound, atmospheric and aquatic photolytic half-life 4.4-13 hrs, subject to near surface, direct photolysis with a half-life of 4.4 hrs, if released to air, it will be subject to direct photolysis, although adsorption may affect the rate, reaction with photochemically produced hydroxyl radicals gives an estimated half-life of gas phase crysene of 1.25 hrs oxidation chlonne and/or ozone in sufficient quantities may oxidize chrysene, photooxidation half-life in air 0.802-8.02 hrs hydrolysis not an important process volatilization probably too slow to compete with adsorption as a transport process, will not appreciably evaporate sorption adsorption onto suspended solids and sediment is the dominant transport process if released to soil or to water, expected to adsorb very strongly to the soil biological processes short-term bioaccumulation, metabolization and biodegradation are the principal fates... [Pg.278]

PROBABLE FATE photolysis, data inconclusive, photolysis is probably greatly hindered by strong adsorption, atmospheric and aqueous photolytic half-life 3-25 hrs oxidation-. chlorine and/or ozone in sufficient quantities may oxidize phenanthrene, photooxidation half-life in air 2.01-20.1 hrs hydrolysis-, not important volatilization probably not an important transport process sorption probably the dominant transport process, organic particulates preferred biological processes short-term bioaccumulation, metabolization and biodegradation are the principal fates... [Pg.361]

Hilmy AM, El Domiaty NA, Daabees AY, Moussa FI. 1987. Short-term effects of mercury on survival, behaviour, bioaccumulation and ionic pattern in the catfish Clarias lazera). Comp Biochem Physiol C 87 303-308. [Pg.177]

PROBABLE FATE photolysis dissolved portion should undergo rapid photolysis to quinones, when released to air, may undergo direct photolysis, although adsorption can slow this process, direct photolysis is important near surface of waters half-life for reaction with photo-chemically produced hydroxyl radicals 21.49 hr oxidation oxidation by chlorine and/or ozone could account for a small portion of the dissolved compound hydrolysis not an important process volatilization probably too slow to compete with adsorption as a transport process, evaporation may be important, but limited by adsorption, half-life 43 days sorption very strong adsorption onto suspended solids is the dominant transport process, adsorption in estuarine water 3 pg/L, 71% adsorbed on particles after 3 hr, after 3hr incubation in natural seawater, 75% of 2 pg/L adsorbed to suspended aggregates of dead photoplankton cells and bacteria biological processes bioaccumulation is short-term metabolization and microbial degradation are principal fates... [Pg.242]

PROBABLE FATE photolysis dissolved portion may undergo photolysis to quinones, potential for reaction with alkyl peroxy radicals and hydroperoxy radicals which are photo-chemically produced in humic waters, atmospheric and aqueous photolytic half-life 3.8-499 hrs oxidation if chlorine and/or ozone is present in sufficient quantity, rapid oxidation should occur, photooxidation half-life in air 1.1-11 hrs hydrolysis not an important process volatilization probably too slow to compete with adsorption as a transport process sorption dominant transport process, on land, it is strongly adsorbed to soil, remains in the upper soil layers, in water it will adsorb to sediments and particulate matter in the water column biological processes bioaccumulation is short-term accompanied by metabolization, microbial biodegradation is the dominant fate, biodegradation expected to be very slow (half-life 2 yrs with acclimated microorganisms)... [Pg.246]

PROBABLE FATE photolysis the dissolved portion of the compound may undergo rapid photolysis to quinones, atmospheric and aqueous photolytic half-lives 6 hrs-32.6 days, may be subject to direct photolysis in the atmosphere, reaction with photochemically produced hydroxyl radicals has a half-life of 1.00 days oxidation rapid oxidation by chlorine and/or ozone may compete for dissolved DBA, photooxidation half-life in air 0.428-4.28 hrs hydrolysis not an important process volatilization probably too slow to be important, rate uncertain sorption strong adsorption by suspended solids, especially organic particulates, should be the principal transport process biological processes bioaccumulation is short-term, metabolization and microbial biodegradation are the principal fates... [Pg.286]

PROBABLE FATE photolysis, may be important, but is probably impeded by adsorption, photooxidation by U.V, in aqueous medium (Ty 90-95°C time for the formation of CO, (% of theoretical) 25% 75.3 hr, 50% 160.6 hr, 75% 297.4 hr, photooxidation half-life in air 6.81 hrs-2.i du>s, degrades quickly by photochemically produced hydroxyl radicals, with an estimated half-life of 29 hr oxidation-, chlorine and/or ozone in sufficient quantities may oxidize fluorene hydrolysis, not an important process volatilization probably not an important transport process, volatilization half-lives from a model river and a model pond 15 and 167 respectively sorption adsorption onto particles, biota, and sediments is probably the dominant transport process, half-life in soil ranges from 2-64 days biological processes bioaccumulation is short-term, metabolization and biodegradation are very important fates in estuarine waters 15pg/L, 12% adsorbed on particles after 3 hr... [Pg.324]

As an alternative to harmful fire retardant, nano-clay applications have recently been nsed very successfully, especially with PU foams that are used in furniture [23]. A draft list of Persistent, Bioaccumulative, and Toxic substances, providing limits under the proposed EU-REACH regulations for authorisation (targeted for control and/or substitution) in the short-term, as well as elimination in the longer term, is also available. [Pg.47]

The accumulation of in fish and invertebrates such as mollusks and Crustacea, over the short-term, can result from the release of in liquid effluents. Fish and invertebrates in equilibrium with fresh water containing 1 pCi L would be expected to contain approximately 15 and 5 pCi kg respectively, based on calculated bioaccumulation factors for iodine (Thompson et al, 1972). Fish taken from salt water of the same concentration would be expected to contain 10-20 pCi kg and invertebrates 50-100 pCi kg (Frecke, 1967 Thompson et al, 1972). The intake of with fresh water fish having a normalized concentration of 15 pCi kg" per pCi L water were calculated from the data in Table 4.3 on fish consumption by the four age groups. The results indicate that such fish would contribute 0.05, 0.08, 0.15, and 0.21 pCi to the daily diets of the 1-, 4-, and 14-year olds and adults, respectively. These intakes are insignificant compared to corresponding intakes with drinking water obtained from the same source as the fish. [Pg.18]

Chloroparaffines are stable, persistent compounds that bioaccumulate in the environment with BCF about 1,000. Short- and medium-chain paraffines are very toxic to aquatic organisms and may cause long-term adverse effects in the aquatic environment [134]. [Pg.125]


See other pages where Short-term bioaccumulation is mentioned: [Pg.234]    [Pg.274]    [Pg.323]    [Pg.344]    [Pg.234]    [Pg.274]    [Pg.323]    [Pg.344]    [Pg.229]    [Pg.128]    [Pg.385]    [Pg.308]    [Pg.185]    [Pg.226]    [Pg.446]    [Pg.198]    [Pg.291]    [Pg.144]    [Pg.340]    [Pg.228]    [Pg.244]    [Pg.323]    [Pg.333]    [Pg.636]    [Pg.616]    [Pg.80]    [Pg.200]    [Pg.140]    [Pg.164]    [Pg.212]    [Pg.133]    [Pg.144]   
See also in sourсe #XX -- [ Pg.107 ]




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Bioaccumulation

Short-term

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