Sentences with phrase «excess nitrogen»

Thus, continued release of excess nitrogen to the environment will probably accelerate climate change with time and will also lead to the formation of more ozone holes in this century.

Reducing excess nitrogen in the diet could be an effective strategy to reduce ammonia emissions without affecting a farm's bottom line.

This would allow optimum plant growth without producing excess nitrogen in run - off from fields, which is a major source of water pollution.

Vast quantities of excess fertilizers wash off fields each year, polluting huge watersheds; as just one example, each summer an oxygenless «dead zone» spreads from the mouth of the Mississippi River, fueled by excess nitrogen from upstream.

A recent study of harmful algal blooms in the Chesapeake Bay and its tributaries by the University of Maryland Center for Environmental Science show a marked increase in these ecosystem - disrupting events in the past 20 years that are being fed by excess nitrogen runoff from the watershed.

Excess nitrogen fertilizers from the field can flow into bodies of water.

The nation's waterways are brimming with excess nitrogen from fertilizer — and plans to boost biofuel production threaten to aggravate an already serious situation

Heavy - duty vehicles, such as commercial trucks and buses, were found to be, by far, the largest contributor of emissions, accounting for 76 percent of the total excess nitrogen oxide emissions.

A highly alkaline reading is likely due to catabolism, the process of breakdown of body tissue which triggers excess nitrogen in the urine.

Blaming excess nitrogen in area waters for causing harmful algal blooms, fish kills and beach closures, a panel of scientists and experts said Suffolk County should upgrade septic systems, launch buoys to monitor water quality and use imaging to predict problem spots.

Excess nitrogen mitigates carbon dioxide's effects — but with considerable risk, scientists say

In nature, only one enzyme — bacterial nitrogenase — can achieve the same reaction, but without emitting excess nitrogen compounds into the environment, or in other words, leaching of nitrates into groundwater.

These include monitoring plants» uptake of fertilizer so it can be applied more efficiently, as well as switching to slow - release fertilizers, using cover crops to absorb excess nitrogen or applying nitrification inhibitors — chemicals that stop microbes from producing NOx.

For example, expanded sewering of larger towns on the west side of the bay has helped reduce excess nitrogen from reaching nearby waterways more than sites along the Cape Cod side of Buzzards Bay that do not have such infrastructure already in place.

Excess nitrogen also boosts algae growth.

These children lived in neighborhoods that, according to the U.S. Environmental Protection Agency, had excess nitrogen dioxide and tiny air pollution particles that are generated by automobiles and power plants, formally called particulate matter 2.5 (PM2.5).

In particular, excess nitrogen washes off of agricultural and urban landscapes and is accelerating the destructive growth of algae in lakes, rivers and coastal estuaries around the world.

Here, we tested the hypothesis that sub-bleaching temperature and excess nitrogen promotes symbiont parasitism by measuring respiration (costs) and the assimilation and translocation of both carbon (energy) and nitrogen (growth; both benefits) within Orbicella faveolata hosting one of two Symbiodiniumphylotypes using a dual stable isotope tracer incubation at ambient (26 °C) and sub-bleaching (31 °C) temperatures under elevated nitrate.

Valine also helps remove potentially toxic excess nitrogen from the liver, and is able to transport nitrogen to other tissues in the body as needed.

Specifically it helps to eliminate excess nitrogen.

The EPA and California Air Resources Board approved a fix Volkswagen proposed that aims to curb excess nitrogen oxide emissions.

Their results showed that farmers there use about 525 pounds of nitrogen fertilizer per acre (588 kilograms per hectare) annually — releasing about 200 pounds of excess nitrogen per acre (227 kilograms per hectare) into the environment.

«The problem of mitigation of excess nitrogen loss to waters is not easily resolved,» said the co-author Penny Johnes, director of the Aquatic Environments Research Center at the University of Reading in Britain.

Plants need nitrogen, but excess nitrogen harms them and pollutes rivers, lakes and oceans.

Specifically for the EU, 1.1 million km2 of the ecosystem area (77 %) was exposed to excess nitrogen fallout in 2015.

Progress is however markedly slower for eutrophication, which is caused by excess nitrogen deposition resulting from emissions of nitrogen oxides (NOx) and ammonia (NH3).

Climate change multiplies this concern, because many of the environmental effects of excess nitrogen and phosphorus, as well as food insecurity in poorer countries, are likely to worsen under a rapidly changing climate.

Untreated wastewater also remains a key environmental problem for aquaculture, with excess nitrogen and phosphorus leaching into oceans and ponds and choking the existing ecosystems.

And excess nitrogen fertilizer applied to the fields of feed corn grown to satisfy the world's livestock runs off into streams and rivers, sometimes flowing to coastal waters where it creates large algal blooms and low - oxygen «dead zones» where fish can not survive.

Inhospitable waters are caused by excess nitrogen that originates from distant Mid - western agribusinesses.

For example, excess nitrogen in the atmosphere also forms another regulated class of air pollution known as fine particulate matter (PM).

As Margaret reminded us too, seaweed can also help fight fertilizer run - off — sucking up excess nitrogen from our bays and sometimes even being returned to the field as fertilizer.

Unfortunately, you have poisoned your plants and there is nothing you can do except flood them with water and hope the excess nitrogen drains off.

While the extra nitrogen is a rich resource for algae in the Gulf, driving the growth of massive algal blooms, excess nitrogen has a more deadly impact on other marine life.

«They are important for the stabilization of shorelines, filtration of coastal water, protection of important economically valuable fishes and invertebrates, and the removal of excess nitrogen.»

That excess nitrogen, in the form of nitrate, leaches from the soil into streams, wending its way to the Mississippi River and the Gulf of Mexico.

For example, farmers can use more efficient fertilization strategies such as adjusting how much fertilizer is used depending on specific growing stages, or planting what are called cover crops along with the target crops that enrich soils and consume the excess nitrogen.

The excess nitrogen is acidifying soils, killing vulnerable species and saturating ecosystems so that they lose the ability to recycle the nitrogen back into the air.

It takes a bit more water to process this excess nitrogen byproduct.

It helps to maintain proper nitrogen balance by acting as a vehicle for transportation and storage, and aiding in the excretion, of excess nitrogen.

These diet changes are made merely because damaged kidneys may not be able to handle the excess nitrogen efficiently.

During that period, tons of excess nitrogen and phosphorus entered the Mississippi River Basin and drained into the Gulf of Mexico, where the large influx of nutrients has triggered huge algal blooms.

Statistics show that from 2003 to 2005, annual corn yields in parts of the Midwestern United States and north China were almost the same, even though Chinese farmers used six times more nitrogen fertilizer than their American counterparts and generated nearly 23 times the amount of excess nitrogen.

Although the sources of excess nitrogen and phosphorus in the environment are similar, phosphorus, unlike nitrogen, remains a finite, diminishing, and irreplaceable resource, and one that is concentrated in just a few countries.

That level of cuts would make a substantial dent in the downstream and downwind effects of excess nitrogen and phosphorus.

Excess nitrogen and phosphorus in the environment cause diverse environmental ills, many of which directly affect human health and welfare.

When viewed in this fashion, excess nitrogen and phosphorus in the environment add to the risks and clearly provide opportunities for mitigation and adaptation.