Glossary N

The Environmental Glossary. Letter N +++ 'Nutrient', 'Nitrogen fixation', 'Natural gas'
A Nitrous Oxide (N2O) is a powerful greenhouse gas with a global warming potential most recently evaluated at 310. Major sources of nitrous oxide include soil cultivation practices, especially the use of commercial and organic fertilizers, fossil fuel combustion, nitric acid production, and biomass burning.
A No-Tillage is Crop production system in which the soil is left undisturbed from harvest to planting.
A NOCT is Nominal Operating Cell Temperature, the temperature at which Cells in a Module operate under Standard Operating Conditions (SOC), which are: irradiance of 0.8 kW/m2, 20_C ambient temperature, and average windspeed of 1 m/s, with the wind oriented parallel to the plane of the array, and all sides of the array fully exposed to the wind.
A noise pollution is Environmental Pollution made up of harmful or annoying noise.
A nominal is Referring to the state of having desirable or acceptable ecological condition. The quantified standard established for a condition indicator to represent the desirable or
A NON-AGRICULTURAL SECTORS is General term which refers to a combination of home/garden and industrial/commercial/governmental sectors.
Non-Analyzable Constituents are Constituents that lack appropriate test methods or chemical standards and therefore cannot be properly measured to determine compliance with LDR concentration -based standards in 268.40 and 268.48.

A Non-Conformity, Minor is an indication or judgment that a process, product, or service has isolated discrepancies from the stated requirements which may or may not significantly impact the product.

- Non-methane volatile organic compounds (NMVOCs) : A Non-methane volatile ORGANIC COMPOUNDS (NMVOCs) is Organic compounds, other than methane,
A Non-point source is Large land area such as crop fields and urban areas that Discharge Pollutant into surface and underground water over a large area. See point source.