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sector:energy:fuel_combustion:energy_industries:public_electricity_and_heat_production [2022/03/22 11:23] – [Methodology] kotzulla | sector:energy:fuel_combustion:energy_industries:public_electricity_and_heat_production [2022/03/22 11:24] (current) – [Trend discussion for Key Sources] kotzulla | ||
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The following diagrams give an overview and assistance for explaining dominant emission trends of selected pollutants. | The following diagrams give an overview and assistance for explaining dominant emission trends of selected pollutants. | ||
- | === Fuel Consumption === | + | ==== Fuel Consumption |
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The first graph shows that the total energy consumption of fossil fuels for public electricity and heat consumption didn't change very much since 1990. The main reasons are the rising electricity demand and a great number of industrial power plants whose emissions are now reported in source category 1.A.1.a. From 1990 to the present time, a slight fuel switch from coal to natural gas was observed. In 2009 fuel consumption of all fossil fuels decreased remarkably as a result of the economic crisis. The economic recovery in 2010 led to an increasing fuel consumption because of the increasing electricity demand. From 2003 biomass consumption rises considerably due to the government aid of renewable energies. | The first graph shows that the total energy consumption of fossil fuels for public electricity and heat consumption didn't change very much since 1990. The main reasons are the rising electricity demand and a great number of industrial power plants whose emissions are now reported in source category 1.A.1.a. From 1990 to the present time, a slight fuel switch from coal to natural gas was observed. In 2009 fuel consumption of all fossil fuels decreased remarkably as a result of the economic crisis. The economic recovery in 2010 led to an increasing fuel consumption because of the increasing electricity demand. From 2003 biomass consumption rises considerably due to the government aid of renewable energies. | ||
- | === Sulfur Oxides - SOx === | + | ==== Sulfur Oxides - SOx ==== |
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SO< | SO< | ||
- | === Nitrogen Oxides - NOx === | + | ==== Nitrogen Oxides - NOx ==== |
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Nitrogen oxides emissions decreases due to declining lignite consumption in the early 1990s and due to NO< | Nitrogen oxides emissions decreases due to declining lignite consumption in the early 1990s and due to NO< | ||
- | === Particulate Matter - PM2.5 & PM10 & TSP === | + | ==== Particulate Matter - PM2.5 & PM10 & TSP ==== |
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Similar to SO< | Similar to SO< | ||
- | === Priority Heavy metal - Pb & Hg & Cd === | + | ==== Priority Heavy metal - Pb & Hg & Cd ==== |
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Emission trends of all priority heavy metals are mostly influenced by the emissions from lignite use. The reasons of the declining emissions are on the one hand the decreasing lignite consumption and on the other hand the implementation of stricter regulations in eastern Germany. Due to the fact, that heavy metal emission factors for waste incineration plants are constant, emission trends solely depend on coal consumption. In reality emission trends of all heavy metals would be more influenced by the emissions from waste fuels, since the emission factors for waste incineration plants in 1990 are expected to be high. In recent years emissions from Biomass combustion gain more and more influence on the trend. | Emission trends of all priority heavy metals are mostly influenced by the emissions from lignite use. The reasons of the declining emissions are on the one hand the decreasing lignite consumption and on the other hand the implementation of stricter regulations in eastern Germany. Due to the fact, that heavy metal emission factors for waste incineration plants are constant, emission trends solely depend on coal consumption. In reality emission trends of all heavy metals would be more influenced by the emissions from waste fuels, since the emission factors for waste incineration plants in 1990 are expected to be high. In recent years emissions from Biomass combustion gain more and more influence on the trend. | ||
- | === Persistent Organic Pollutants === | + | ==== Persistent Organic Pollutants |
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