ASTM F1279-1990(1999) Standard Guide for Ecological Considerations for the Use of Oilspill Dispersants in Freshwater and Other Inland Environments Permeable Surfaces 《淡水和其它内陆环境渗透性表.pdf
《ASTM F1279-1990(1999) Standard Guide for Ecological Considerations for the Use of Oilspill Dispersants in Freshwater and Other Inland Environments Permeable Surfaces 《淡水和其它内陆环境渗透性表.pdf》由会员分享,可在线阅读,更多相关《ASTM F1279-1990(1999) Standard Guide for Ecological Considerations for the Use of Oilspill Dispersants in Freshwater and Other Inland Environments Permeable Surfaces 《淡水和其它内陆环境渗透性表.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: F 1279 90 (Reapproved 1999)Standard Guide forEcological Considerations for the Use of OilspillDispersants in Freshwater and Other Inland Environments,Permeable Surfaces1This standard is issued under the fixed designation F 1279; the number immediately following the designation indicates
2、 the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This guide covers the use of oilspill dispersa
3、nts to assistin the control of oil spills. The guide is written with the goal ofminimizing the environmental impacts of oil spills; this goal isthe basis on which the recommendations are made. Aestheticand socioeconomic factors are not considered although theseand other factors are often important i
4、n spill response.1.2 Spill responders have available several means to controlor clean up spilled oil. In this guide, the use of dispersants isgiven equal considerations with other spill countermeasures. Itis not considered as a last resort after all other methods havefailed.1.3 This is a general gui
5、de only. It assumes the oil to bedispersible and the dispersant to be effective, available, appliedcorrectly, and in compliance with relevant government regula-tions. In the assessment of environmental sensitivity, it isassumed that the dispersant is nonpersistent in the naturalenvironment. Oil, as
6、used in this guide, includes crude oils andrefined petroleum products. Differences between individualdispersants or between different oil products are not consid-ered.1.4 The guide is organized by habitat type; for example,small ponds and lakes, rivers and streams, and land. Itconsiders the use of d
7、ispersants primarily to protect habitatsfrom impact (or to minimize impacts) and to clean them aftera spill takes place.1.5 This guide applies only to freshwater and other inlandenvironments. It does not consider the direct application ofdispersants to subsurface waters.1.6 In making dispersant use
8、decisions, appropriate govern-ment authorities should be consulted as required by law.1.7 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices a
9、nd determine the applica-bility of regulatory limitations prior to use.2. Significance and Use2.1 This guide is meant to aid local and regional responseteams who may use it during spill response planning and spillevents.2.2 This guide should be adapted to site-specific circum-stances.3. Environment
10、CoveredPermeable Surfaces3.1 Permeable ground includes any soil, rock, agriculturalland and forest, pasture land, forest, roadside or other surface,that is permeable to water and oil.4. Background4.1 The effects of oil and especially that of dispersed oil onterrestrial biota is not well known. In on
11、e study, oil spilled onsoil decreased the nematode (worm) population by as much as80 % (1).2Lai Hoi-Chaw and co-workers show that a littornidgastropod (snail) showed avoidance to oil spilled on the mud ofa mangrove swamp (2). This avoidance decreased the mortalityof the species to both oil and chemi
12、cally-dispersed oil. McGillhas noted that soil arthropods (insects) are quickly killed afterspills (3).4.2 Oil has a broad-spectrum herbicidal effect on plants(3,4). Effects vary depending on concentration and on species.Oil in low concentrations has been shown to increase growth insome species, whe
13、reas slight contact with oil causes death inothers (4). Black spruce, alfalfa and canola have a lowtolerance for oil, while willow, dogwood and brome grass havea high tolerance (5). Light oils may be toxic to vegetation oncontact. Heavy oils have a tendency to smother plants over alonger period of t
14、ime (3). Oiling of the vegetative portions maykill the upper portion of the plant, but the root may still live andproceed to grow new stalks (3). In one test, 0.4 to 3.4 L/m2ofa light crude oil killed most plants in a northern boreal setting(6). In another experiment light fuel oil at 0.6 % by weigh
15、tkilled all plants present (7). Oil reduces the germination rate ofseeds. Weathered oil on the soil forms a crust which can slowrevegetation (3). Revegetation time varies but has ranged from1 to 20 years depending on location, condition, and amount ofoiling (1,3).1This guide is under the jurisdictio
16、n of ASTM Committee F-20 on HazardousSubstances and Oil Spill Responseand is the direct responsibility of SubcommitteeF20.13 on Treatment.Current edition approved Feb. 23, 1990. Published April 1990.2The boldface numbers in parentheses refer to the list of references at the end ofthis guide.1Copyrig
17、ht ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.4.3 Oil spilled on ground will penetrate the surface, the rateof penetration depending on soil type, pore size, depth of thewater table, and oil type. Studies on marine beaches show thatdispersants increase the oil penet
18、ration. Dispersants increasethe penetration rate and depth (8,9). Rowland and co-workersshowed that dispersants premixed with oil increased penetra-tion into supratidal sediment (10). Dewling and Silva examinedthe use of dispersants on a beach in Brazil and determined thatthe average penetration of
19、oil was increased from 5 to 60 cm bythe use of hydrocarbon-based dispersants (11).4.4 Oil degradation takes place on soil surfaces under manyconditions. Factors that increase degradation rate and amountinclude high oxygen level, ample but not excessive (saturating)moisture, slightly alkaline pH, hig
20、h temperature and amplenutrients (1). Initially after a spill, the diversity of soilmicroorganisms is decreased by the toxicity of the oil, but thetotal number is increased due to the increase in number ofoleoclasts (oil degrading microorganisms). Soil respirationincreases after a spill (1). Parkins
21、on showed in a test spill onnorthern boreal soil that soil respiration increased 100 % andthe bacterial numbers increased tenfold (12).4.5 Microbial degradation of oil occurs primarily at the soilsurface (1,3,13). One study showed that below 15 cm there waslittle degradation (14). Degradation occurs
22、 primarily at thesurface due to oxgyen, low but sufficient moisture, supply ofnutrients, and because the highest population of oleoclasts isthere (1).4.6 Contamination of groundwater is of prime concern inland spills. Little oil degradation takes place in groundwaterand dilution alone would take man
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