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effect level

Listing 1 - 10 from 535 for effect level

Glossary of Terms
... by groundwater. GRGL Groundwater residue guidance level. Back to Top - H - Hazard The potential that the use of a compound could result in a toxic effect. Health Advisory (HA) A non-enforceable ... not normally occur. Back to Top - N - No Observable Effect Level (NOEL) The highest dose given which does not show an observable adverse effect to the organism. Nonvolatile A substance that will not ...
extoxnet.orst.edu

EXTOXNET PIP - DICLOFOP - METHYL
... female rats was greater than 2,000 mg/kg. The no effect level (NEL) for a 90-day feeding to rats was 12. ... 303). Teratogenic Effects: In a rat teratology study, the teratogenic No-Observable-Effect-Level (NOEL) was 100 ppm, the highest dose tested. A rabbit ... 5 miligrams (300). A micronucleus test in mice indicated no mutagenic effect in a strain with known sensitivity. In a dominant lethal assay ...
extoxnet.orst.edu

EXTOXNET PIP - DICROTOPHOS
... shock (11). Chronic Toxicity: In 2-year feeding trials, the no effect level (NEL) was 1.0 mg/kg diet (0.05 mg/kg ... dissipated almost entirely within 24 hours (16). The most significant effect noted was reversible cholinesterase depression at thresholds of 1.5 ... very toxic to honeybees, but because surface residues rapidly decline, little effect is seen in actual practice (2). The relative toxicity of ...
extoxnet.orst.edu

EXTOXNET PIP - FOLPET
... in body weight and clinical biochemistry, the Lowest Observed Effects Level (LOEL) was 60 mg/kg/day, and the No Observable Effect Level (NOEL) was 10 mg/kg/day (321). In another study ... weight gain, decreased fertility of males and a Lowest Effect Level (LEL) of 180 mg/kg/day (322). Another study reported no significant effect on reproductive performance over three generations in rats at ...
extoxnet.orst.edu

Plant Pathology: Disease Management: Cultural Management Practices
... such as loss of nutrients, smoke pollutions, increased soil erosion and contributing to the greenhouse effect. Because burning can completely destroy a source of inoculum, it is commonly used in ... , irrigation during dry seasons prevents the desiccation of propagules during drought, thereby increasing the level of inoculum. The irrigation water can also carry propagules and spread disease, unless it ...
bugs.bio.usyd.edu.au

How Much Water Does a Rose Need for Good Health
... great distances from the point of the drip. Some gardeners have realized this cause and effect and have adopted multi-drip points arranged in a circle around the base of the ... delivered by hand or by an automatic high volume sprinkler system either overhead or ground level.
carolinadistrict.org

CPs Terrarium: Designing a Terrarium
... -quality one. A way to generate an almost natural air flow is exploiting the "chimney effect". How it works. Hot air and tends to flow toward the rear aperture causing a ... fish tank you may be in trouble due to high humidity level. Water could condensate on the internal windows causing harmful effect for most of plants. A solution is asking to a ...
digilander.libero.it

Building a Floating Hydroponic Garden
... polyethylene to form a trough to contain the nutrient solution. Be sure the site is level and free of any debris, which could puncture the polyethylene. Secure one end and side ... garden ( Figure 2 ). Figure 2. Nutrients needed for floating garden. Light rainfall will have little effect on the water garden; only extensive flooding would require fertilizer adjustment based on the amount ...
edis.ifas.ufl.edu

EXTOXNET PIP - ACETOCHLOR
... dosages of 0, 40, 100, and 300 mg/kg/day resulted in a no-observed-effect-level (NOEL) of 40 mg/kg/day based on loss of body weight and decreased food ... mild skin irritation after 21 days. Signs of systemic toxicity were not apparent at any level. Higher doses were not possible because of severe dermal toxicity at higher doses (209). In ...
extoxnet.orst.edu

NERC - Is the ozone hole related to the greenhouse effect?
... ozone hole related to the greenhouse effect? Natural Environment Research Council Home Contact us|Help|Site Map|Search Home ... Skip to content Is the ozone hole related to the greenhouse effect? Scientists at NERC's British Antarctic Survey discovered the ozone hole in ... it will be many decades before ozone returns to its pre-1980 level. The issue of climate change will be harder to tackle than ozone ...
www.nerc.ac.uk