Sentences with phrase «nitrogen compounds for»

Not exact matches

A good source of purines, nitrogen - containing compounds that serve as precursors for DNA and RNA.

The EU National Emission Ceilings Directive sets ceilings for each Member State for emissions of ammonia, oxides of nitrogen, sulphur dioxide and volatile organic compounds (VOCs).

One gallon of typical domestic wastewater contains enough organic compounds and nitrogen to power a 100 - watt lightbulb for five minutes.

Volcanic plumes were ideal crucibles for sparking stable nitrogen to form reactive compounds that led to the first organic molecules, chemists report in the 15 August Geophysical Research Letters.

The air pollutants analyzed for the coal system included particulate matter (soot), mercury, volatile organic compounds, nitrogen oxides and sulfur oxides.

Species known as mycorrhizal fungi use their mycelia to envelop or penetrate plant roots, contributing nitrogen compounds and mineral salts in exchange for sugars from the host organism.

Nitrospinae bacteria, which use the nitrogen compound nitrite to «fix» inorganic carbon dioxide into sugars and other compounds for food and reproduction, are responsible for 15 to 45 percent of such carbon fixation in the western North Atlantic Ocean, researchers report in the...

Beijing has been battling an unwelcome, unrelenting and «very unhealthy» smog for many months, much of it made up of particulate nitrogen compounds suspended in the air.

The various compounds containing nitrogen (such as nitrate, nitrite or ammonia) are essential nutrients for ocean life, particularly for phytoplankton that serve as the foundation of the food web.

They have also found components used to make DNA, the molecule that carries the instructions for how to build and regulate a living organism, as well as other biologically important molecules like nitrogen heterocycles, sugar - related organic compounds, and compounds found in modern metabolism.

Further, the findings of this study of the North Pacific highlight the need for greater controls on the emission of nitrogen compounds during combustion and agricultural processes.

All life forms on Earth use the same genetic alphabet of the bases A, T, C, and G — nitrogen - containing compounds that constitute the building blocks of DNA and spell out the instructions for making proteins.

The Animal Core routinely provides liver samples to individual investigators either on ice, fixed in formalin for histology, frozen in optimal cutting temperature (OCT) compound for immunohistochemistry, flash frozen or freeze - clamped in liquid nitrogen for biochemical assays or stored in RNA later.

The specialized instruments onboard the aircraft sampled the plume for aerosol particle size distribution and composition as well as concentrations of pollutant gases such as sulfur dioxide, nitric oxide, nitrogen dioxide, ozone, and volatile organic compounds (VOCs).

The coral satisfy this additional energy requirement as well as the need for essential nitrogen and phosphorus compounds by eating zooplankton — an option that would become narrower with increasing ocean acidification,» says Claudio Richter.

Green peas act as natural nitrogen fixers, converting the compound into a usable form for organisms.

A good source of purines, nitrogen - containing compounds that serve as precursors for DNA and RNA»

L - arginine is the precursor to the formation of the nitrogen oxide molecule, a compound responsible for controlling the widening of blood vessels.

These amino acids carry nitrogen to help synthesis other compounds required for anabolic muscle action and energy production.

Liver contains many nitrogen - containing compounds that are building blocks for DNA & RNA.

Recalling the concern reflected in the outcome document of the United Nations Conference on Sustainable Development, entitled «The future we want», 1 that the health of oceans and marine biodiversity are negatively affected by marine pollution, including marine debris, especially plastic, persistent organic pollutants, heavy metals and nitrogen - based compounds, from numerous marine and land - based sources, and the commitment to take action to significantly reduce the incidence and impacts of such pollution on marine ecosystems, Noting the international action being taken to promote the sound management of chemicals throughout their life cycle and waste in ways that lead to the prevention and minimization of significant adverse effects on human health and the environment, Recalling the Manila Declaration on Furthering the Implementation of the Global Programme of Action for the Protection of the Marine Environment from Land - based Activities adopted by the Third Intergovernmental Review Meeting on the Implementation of the Global Programme of Action for the Protection of the Marine Environment from Land - based Activities, which highlighted the relevance of the Honolulu Strategy and the Honolulu Commitment and recommended the establishment of a global partnership on marine litter, Taking note of the decisions adopted by the eleventh Conference of the Parties to the Convention on Biological Diversity on addressing the impacts of marine debris on marine and coastal biodiversity, Recalling that the General Assembly declared 2014 the International Year of Small Island Developing States and that such States have identified waste management among their priorities for action, Noting with concern the serious impact which marine litter, including plastics stemming from land and sea - based sources, can have on the marine environment, marine ecosystem services, marine natural resources, fisheries, tourism and the economy, as well as the potential risks to human health; 1.

In their press release from Friday they announce they have created a database [which seems not always to work] with updated data on current emissions sources, not just for CO2 and methane, but also for various nitrogen compounds and for instance soot — that most - ignored climate forcer.

For years, scientists had tracked the fate of nitrogen - containing compounds during the Antarctic summer, when phytoplankton flourish.

Ozone is an odorless gas that is not directly emitted into the air but is created by chemical reactions between nitrogen oxides (NOx) and volatile organic compounds (VOC)-- which occur naturally but are also produced from the burning of fossil fuels and are released in the process of drilling for oil and natural gas.

And in every case, it was determined that using these sources to create electricity for PHEVs was more efficient and created less total greenhouse gases (GHGs), volatile organic compounds (VOC), carbon monoxide (CO), nitrogen oxides (NOx), fine particulate (PM2.5) and sulfur oxides (SOx).

State Agencies Must Purchase or Lease Vehicles That Use Alternative Fuels Louisiana's Advanced Biofuel Industry Development Initiative further states, «The commissioner of administration shall not purchase or lease any motor vehicle for use by any state agency unless that vehicle is capable of and equipped for using an alternative fuel that results in lower emissions of oxides of nitrogen, volatile organic compounds, carbon monoxide, or particulates or any combination thereof that meet or exceed federal Clean Air Act standards.»

The US government needs to demonstrate that limiting CO2 emission in the US doesn't drive the emission overseas where there is less control for associated emissions like soot, sulfates, and nitrogen compounds which have immediate and well known hazards to health.

Grazing livestock merely recycle a few compounds of nitrogen, all of which either return to the atmosphere or provide valuable nitrogen fertilizers for the plants they graze on.

Since there are no environmental protection regulations governing indoor residential kitchens, your lungs, skin and digestive systems have become the de facto filter for a soufflé of carbon monoxide, nitrogen dioxide, formaldehydes, volatile organic compounds, polycyclic aromatic hydrocarbons, fine and ultra fine particles and other pollutants associated with meal preparation.

For example, early global chemical modelling results argued that global tropospheric ozone, a greenhouse gas, was controlled by emissions of the highly reactive gases nitrogen oxides (NOx), carbon monoxide (CO) and non-methane hydrocarbons (NMHC, also known as volatile organic compounds, VOC).

Grazing livestock merely recycle a few compounds of nitrogen, all of which either return to the atmosphere or provide valuable nitrogen fertilisers for the plants they graze on.