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318584 occurrences (No.68 in the rank) during 5 years in the PubMed. [cache]
143) Our study suggests that PFOS could indeed pose a potential risk to ecological safety of soil if present even at concentrations as low as 0.8 μg g(-1) since the highest bioaccumulation factor was found to be from such a soil (field contaminated RBD).
2015 Environmental science and pollution research international
* Perfluorooctane sulfonate release pattern from soils of fire training areas in Australia and its bioaccumulation potential in the earthworm Eisenia fetida.
- Aqueous film-forming foams (AFFF) are used to extinguish hydrocarbon fuel fires. Certain AFFF products such as 3M Lightwater contain perfluorooctane sulfonate (PFOS) as the active ingredient which is highly persistent in the environment and is thus globally prevalent. With thousands of tons of soils potentially contaminated with PFOS stockpiled at a number of sites in Australia, the lack of reliable information on bioavailability of this recalcitrant contaminant constrains the application of a risk-based strategy for managing such soils. In this study, the PFOS release pattern from soils collected from the contaminated sites of fire training areas and its bioaccumulation potential in earthworm were investigated. The study was conducted at two temperatures (25 and 37 °C) and 60 % of the maximum water-holding capacity of soils. The greatest release into water was found to occur from the soil having the highest PFOS concentration, 16.17 μg g(-1) (Tindal FTA064), thereby demonstrating the role of contaminant loading on release behaviour. The release could also be related to the soil physico-chemical properties. The maximum amount of PFOS was desorbed from the soil with the lowest clay and organic matter content. Bioaccumulation of PFOS in earthworms (Eisensia fetida) as expressed by the bioaccumulation factor (BAF) was found to be highest from soil with the lowest PFOS concentration (RBD soil). The range of BAF found in our study was 1.23 (spiked Tindal SS01 soil) to 13.9 (field contaminated RBD soil). Our study suggests that PFOS could indeed pose a potential risk to ecological safety of soil if present even at concentrations as low as 0.8 μg g(-1) since the highest bioaccumulation factor was found to be from such a soil (field contaminated RBD).
=>安い, 低いところ, 卑劣に, 粗食で, 低い(もの), 弱い, 粗末な, 乏しい, 衿ぐりが深い, 建物の低い,
下劣な, 低級な
Overview of noun low
The noun low has 4 senses (no senses from tagged texts)
1. low, depression -- (an air mass of lower pressure; often brings precipitation; "a low moved in
over night bringing sleet and snow")
2. Low, David Low, Sir David Low, Sir David Alexander Cecil Low -- (British political cartoonist
(born in New Zealand) who created the character Colonel Blimp (1891-1963))
3. low -- (a low level or position or degree; "the stock market fell to a new low")
4. first gear, first, low gear, low -- (the lowest forward gear ratio in the gear box of a motor
vehicle; used to start a car moving)
Overview of verb low
The verb low has 1 sense (no senses from tagged texts)
1. moo, low -- (make a low noise, characteristic of bovines)
Overview of adj low
The adj low has 10 senses (first 6 from tagged texts)
1. (55) low -- (less than normal in degree or intensity or amount; "low prices"; "the reservoir is
low")
2. (23) low -- (literal meanings; being at or having a relatively small elevation or upward
extension; "low ceilings"; "low clouds"; "low hills"; "the sun is low"; "low furniture"; "a low
bow")
3. (11) low, low-toned -- (very low in volume; "a low murmur"; "the low-toned murmur of the surf")
4. (6) low -- (unrefined in character; "low comedy")
5. (4) low, low-pitched -- (used of sounds and voices; low in pitch or frequency)
6. (3) abject, low, low-down, miserable, scummy, scurvy -- (of the most contemptible kind; "abject
cowardice"; "a low stunt to pull"; "a low-down sneak"; "his miserable treatment of his family"; "You
miserable skunk!"; "a scummy rabble"; "a scurvy trick")
7. humble, low, lowly, modest, small -- (low or inferior in station or quality; "a humble cottage";
"a lowly parish priest"; "a modest man of the people"; "small beginnings")
8. depleted, low -- (no longer sufficient; "supplies are low"; "our funds are depleted")
9. broken, crushed, humbled, humiliated, low -- (subdued or brought low in condition or status;
"brought low"; "a broken man"; "his broken spirit")
10. gloomy, grim, blue, depressed, dispirited, down, downcast, downhearted, down in the mouth, low,
low-spirited -- (filled with melancholy and despondency ; "gloomy at the thought of what he had to
face"; "gloomy predictions"; "a gloomy silence"; "took a grim view of the economy"; "the darkening
mood"; "lonely and blue in a strange city"; "depressed by the loss of his job"; "a dispirited and
resigned expression on her face"; "downcast after his defeat"; "feeling discouraged and
downhearted")
Overview of adv low
The adv low has 1 sense (first 1 from tagged texts)
1. (3) low -- (in a low position; near the ground; "the branches hung low")
--- WordNet end ---