(a) Clarification of the criteria for acute toxicity, reproductive toxicity and target organ systemic toxicity

(k) Toxicity development of a system of rapid monitoring of water toxicity during space flight

3.1.2.5 In footnote 1, replace toxicity class with toxicity Category and Note (e) with Note (f) .

(g) reproductive toxicity (Chapter 3.7). .

3.7.5.1 Decision logic for reproductive toxicity

(a) acute lethality toxicity (Chapter 3.1)

Acute toxicity values are expressed as (approximate) LD50 (oral, dermal) or LC50 (inhalation) values or as acute toxicity estimates (ATE).

And that alternates with a sediment that looks like this.

The first limitation is the oxygen oxygen toxicity.

He had an oxygen toxicity seizure and he drowned.

This sediment is 100 percent made up of the shells of microscopic plants.

In the table for Specific target organ systemic toxicity (single exposure)

(e) Nutrients and sediment mobilization the Food and Agriculture Organization of the United Nations

(e) Nutrients and sediment mobilization the Food and Agriculture Organization of the United Nations

Table 3.1.2 In the title, insert for classification after toxicity point estimates .

Lots of evidence from sediment cores and the pollen types, oxygen isotopes and so on.

Rivers washed sediment into the seas, until the organic remains of the algae were buried.

Chemicals can be allocated to one of five toxicity categories based on acute toxicity by the oral, dermal or inhalation route according to the numeric cut off criteria as shown in the table below.

And the black rock is the sediment on the sea bottom in the absence of plankton.

And these plants need sunlight, so we know when we find that sediment there's no ice overhead.

The animals or organisms have now been extracted from the sediment for all of the samples collected.

In the title of the table, replace (approximate) LD50 LC50 with acute toxicity estimates (ATE) .

This resulted in a reduction of the estimated area of oil contaminated sediment to approximately 65 square kilometres.

Generated run off is less erosive and less polluting as crop residues reduce sediment transport into river waters.

Scientists will analyse pollutants in rice and grain foods, soils, industrial wastes, fish, water (synthetic), sediment and the atmosphere.

3.1.2.6.5 In addition to classification for inhalation toxicity, if data are available that indicates that the mechanism of toxicity was corrosivity of the substance or mixture, certain authorities may also choose to label it as corrosive to the respiratory tract.

Did you know rats that ate genetically engineered corn had developed signs of liver and kidney toxicity?

Pursue work to improve further the classification scheme on chronic aquatic toxicity hazards (in cooperation with OECD)

3.8.3.4.5 Care should be exercised when extrapolating toxicity of a mixture that contains Category 3 ingredient(s).

Well, an excavation was begun immediately, and more and more little bits of skull started to be extracted from the sediment.

It doesn't matter what kind of sediment you're using to grind up, whether it's bacteria or any other plants or animals.

The short answer is They return to the environment in one way or another, continuing the cycle of toxicity.

Iraq's general contention is that the model predictions of subtidal sediment contamination used by Kuwait to estimate biomass losses are not reliable.

(a) the acute toxicity estimate (ATE) for the classification of a substance or ingredient in a mixture is derived using

Some reproductive toxic effects cannot be clearly assigned to either impairment of sexual function and fertility or to developmental toxicity.

It's a basin, and rivers flow down from the highlands into the basin, carrying sediment, preserving the bones of animals that lived there.

The models used are a Model for the Assessment and Remediation of Sediment ( MARS ) and an Oil Spill Contingency and Response Model ( OSCAR ).

You die also because oxygen toxicity can cause a seizure makes you convulse underwater, not a good thing to happen underwater.

The work was focused on pathogenicity and toxicity studies, characteristics of agents and methods of their production at the laboratory scale.

In those claims, Saudi Arabia estimated the total area of oil contaminated sediment in all the affected sites to be approximately 73 square kilometres.

And we take samples of the sediment, and it tells us the CO2 level of the ocean, and therefore the CO2 level of the atmosphere.

In the second sentence of the paragraph, replace specific reproductive toxicity with an adverse effect on sexual function and fertility or on development .

Application for Remote Sensing Technology to the Study of Water and Sediment Movement in Chao Phraya River in Thailand with Lingdingyang Bay in China with China

And all the sediment is then put through these screens, and where we go again through it very carefully, looking for small bone fragments, and it's then washed.

They take the sediment itself, they extract the oil from it, and from that they can produce compounds which turn out to be very specific to particular microbial groups.