noun
COLLOCATIONS FROM CORPUS
■ ADJECTIVE
high
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He said that portion returned to the river would have a higher concentration of nitrates but would be diluted very quickly.
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A Many marine fishkeepers are worried about unduly high levels of nitrates in their tanks and tapwater, and quite rightly so.
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Beware of stocking new fish into such an environment - high nitrates may well kill them.
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I am not surprised you are experienced high nitrate levels.
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Babies in high nitrate areas are given bottled water.
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Water changes, with high nitrates in your tap water, are therefore less effective than they might be.
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An estimated 100-200,000 use private wells, many with high nitrate levels. 6.
■ NOUN
ammonium
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They weren't chemists; but they started mixing ammonium nitrate fertiliser with diesel fuel, and detonating the mixture with dynamite.
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By contrast, the manufacturers of ammonium nitrate fertiliser have always manfully ignored its explosive properties, despite frequent forceful reminders.
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Expensive commercial explosives continued to sell; consignments of cheap ammonium nitrate fertiliser continued to explode.
level
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I think your nitrate levels are to blame.
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Now is the time to put fears about nitrate levels in water into true perspective.
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I am not surprised you are experienced high nitrate levels .
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Heavily stocked or overfed tanks suffer the most and nitrate levels can quickly rise out of control if great care is not taken.
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Now if we can just lower our tapwater nitrate levels ... I hope you like our new series of free fish cards.
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An estimated 100-200,000 use private wells, many with high nitrate levels . 6.
pollution
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The Ecological Impact of Nitrates Two rivers illustrate the impact of nitrate pollution .
■ VERB
reduce
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According to the DoE, since 1979 government advice to cereal farmers has reduced autumn applications of nitrate by 60 percent.
EXAMPLES FROM CORPUS
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Brunner-Mond came to Billingham for the anhydride deposits which it could process into nitrates.
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But that very nitrate is sustaining the algae.
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But, with heavier stocking, even grass leaches more nitrate .
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Changes can be reduced by good filtration, which will remove ammonia and nitrite, and even nitrate .
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Does it complete the nitrogen cycle, ie. convert nitrate into nitrogen?
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Essentially the bacteria change the harmful ammonia and nitrites that are produced into harmless nitrates that are useful to living plants.
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The question of introducing nitrate protection zones got serious consideration only through the Nitrate Coordination Group in 1987.
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The smile appears forced, unsteady, seems to quaver, though it is frozen in silver nitrate .