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Nitric oxide (NO) and nitrogen dioxide (NO2) are together referred to as nitrogen oxides (NOX). Combustion of fossil fuels is by far the dominant source of NOX emissions. The emissions are not dependent solely on the amount of nitrogen in the fuel but also on the air - fuel mix ratio. High temperatures and oxidation-rich conditions generally favour NOX formation in combustion.NOX contributes to acid deposition and eutrophication which in turn can lead to potential changes occurring in soil and water quality.
This indicator is based on a quantitative questionnaire-based survey (Eurobarometer survey on biodiversity) to provide results that can be presented as, for instance (fictional example): '35 % of the European voting population visit a nature reserve at least once a year'. It can include qualitative information, often involving focus groups, for instance (fictional example): 'Discussion in the United Kingdom focus groups has shown that people are highly concerned about the impact of climate change on wildlife'.
The indicator is defined as the volume of waste landfilled (directly or indirectly) in a country per year divided by the volume of the waste treated in the same year. Waste taken into account excludes major mineral wastes, dredging spoils and contaminated soils. This exclusion enhances comparability across countries, as mineral waste accounts for high quantities in some countries due to economic activities such as mining and construction.
This indicator is defined as all waste generated in a country per inhabitant and year, excluding major mineral wastes, dredging spoils and contaminated soils. This exclusion enhances comparability across countries as mineral waste accounts for high quantities in some countries and economic activities such as mining and construction.
Electrical and electronic waste (e-waste) is a risk to environment because of its hazardous components. However, it also provides a high potential for recycling precious metals and other highly valuable materials.
The indicator presents the effective recycling rate of e-waste which is the collection rate multiplied by the efficiency of treatment of waste electrical and electronic equipment (WEEE).
WEEE cannot simply be regarded as being equivalent to the amount put on the market in the same year, as EEE often takes longer than one year to become a waste.