Примеры использования Nitrate concentrations на Английском языке и их переводы на Русский язык
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Annual average nitrate concentrations in groundwater.
Calculations of the metal sorption parameters by the example of strontium at high sodium nitrate concentrations.
Decreasing nitrate concentrations are also commonly observed.
In contrast to sulphate, changes in nitrate concentrations are modest.
Decreasing nitrate concentrations are also commonly observed.
Increasing nitrate concentrations are detected for certain catchments in Sweden, indicating possible signs of developing nitrogen saturation.
It also shows that reductions in nitrogen emissions would lead to lower nitrate concentrations in the soil.
Assessment of the relationship between soil nitrate concentrations and environmental factors(in particular air pollution);
Additional evaluations show that reductions will most probably occur on plots which today have high nitrate concentrations.
Increasing nitrate concentrations are detected for certain catchments in Sweden, indicating possible signs of developing nitrogen saturation.
The basis for these investigations comprises land use data, agricultural statistics,nitrogen balance surpluses, and nitrate concentrations in the groundwater.
High nitrate concentrations in drinking water are considered dangerous for human health, as they might cause cancers and(albeit rarely) infant methaemoglobinaemia.
As a consequence of decreased sulphur deposition, the sulphate concentrations in runoff water declined at most sites in Nordiccountries between 1988 and 1995; here, decreasing nitrate concentrations are also commonly observed.
Nitrate concentrations above the drinking water standard in the first shallow aquifer; in the deeper aquifer, the water is of good quality.
In the 1990s(actually, 1900-2001),ICP Waters sites have shown decreasing nitrate concentrations in the Adirondack Mountains, Appalachian Mountains and the Virginia Blue Ridge(all in North America), and increasing nitrate in the Alps.
Nitrogen concentrations in the soil solution exceeding the critical limit for nitrogen leaching have been observed in two thirdsof monitored forest plots, posing a threat of nitrate concentrations in groundwater beyond the threshold for drinking water quality.
Overall, river nitrate concentrations are below the threshold of 50 milligrams per litre,(More 98) but current concentrations are still often sufficient to promote eutrophication in coastal waters.
The 1980s were characterized by regional increases in nitrate concentrations in almost all regions(table); with the exception of the United Kingdom(where NO3- is increasing in the 1990s), these trends have disappeared in the 1990s.
Whilst nitrate concentrations remain high, 42% of rivers with long-term time series data for phosphorus concentration- which is often the limiting factor for eutrophication- show statistically significant declines between 1992 and 2008.18 Phosphorus concentrations have also declined since the 1990s in many lakes in Western Europe.
Nitrates concentration in major water bodies(lakes, reservoirs) 11.
Nitrates concentration in the major water bodies.
This bioregionalisation used clustering based on four environmental variables(log10 depth, SST,silicate concentration, nitrate concentration); the agreed display resolution has 14 groups see Figure 3.
Having established nitrate concentration exceeding the permitted limit, primary health care institutions are informed thereof.
The Nitrates Directive(91/676/EEC) requires the identification of groundwater sites/bodies where the annual average nitrate concentration exceeds or could exceed 50 mg NO3/l.
It should also be noted that in respect of wells No25 б, 23 б in 22 nd year of operation(1987) nitrate concentration reaches its maximum level and does not change with time any more fig. 26.
Nitrate concentration in drinking water is easily to measure by quick tests, far more easily then bacteria, and therefore nitrates can serve as an indicator of anthropogenic water pollution.
Polluting inflow from these wastes burial into the ground aquifer surface was taken with maximal possible nitrate concentration of 300 mg\cub. dm, and its volume- in accordance with the accepted value of infiltration recharge for this territory.
Submissions from Belarus, Kyrgyzstan and the Russian Federation partially contain the information required by the Indicator Guidelines: Belarus has shown data on the content of phosphate ion(in phosphorus equivalent) in 18 lakes and Kyrgyzstan publishes data on nitrates in one reservoir.The Russian Federation has published reviews of the Russian surface water quality, showing nitrates concentration in a number of large reservoirs.