… organic compounds at high temperature and sun irradiation. The emissions from those substances decreased distinctly since 1995; this led to a decline in peak … oxides emanate mostly from over-fertilised soils. The emissions from precursor substances have decreased since 1995; this has led to a distinct decline in peak … and leads to ozone depletion, especially during the night. In fact, ozone precursor substances are transported by wind beyond urban areas, thus contributing to the …

… decrease in the future as a result of the energy transition. Release of hazardous substances: Chemical and wastewater treatment plants are affected by increased risks of the release of hazardous substances as a result of flooding. In built-up areas, untreated wastewater can …

… whether demolition is necessary. Contamination with dirty water or water-polluting substances such as chemicals or oils (e.g. from an oil heating system) also plays a … impact on air quality and indoor hygiene by encouraging the release of hazardous substances and mould growth. Times for construction activity: Strong winds, heavy … whether demolition is necessary. Contamination with dirty water or water-polluting substances such as chemicals or oils (e.g. from an oil heating system) also plays a …

… water quality is determined by land use, intensity of use and the concentration of substances introduced. Substance inputs occur from agriculture, transport, industry and mining and private households. The degree of dilution of chemical substances in water depends on the discharge of the water body. If the runoff …

… from cyanobacteria. The absorption of major quantities of cyanotoxins – the toxic substances contained in cyanobacteria (nerve gases and liver toxins) – can lead to … is more likely that these symptoms have been caused by other pathogenic bacteria or substances. Cyanobacteria are found within the framework of bathing water … from cyanobacteria. The absorption of major quantities of cyanotoxins – the toxic substances contained in cyanobacteria (nerve gases and liver toxins) – can lead to …

… water in a circulatory system, employing water-saving technologies or using other substances such as emulsions in lieu of water. An important starting point for the … water in a circulatory system, employing water-saving technologies or using other substances such as emulsions in lieu of water. An important starting point for the …

… areas, new buildings should be considered without basements. Safe storage of substances hazardous to water (e.g. oil and chemicals) is also of great importance. … areas, new buildings should be considered without basements. Safe storage of substances hazardous to water (e.g. oil and chemicals) is also of great importance. …

… good aggregate structure in the soil. It is essential to maintain the organic soil substance or – where necessary – to improve it as required by site-specific … good aggregate structure in the soil. It is essential to maintain the organic soil substance or – where necessary – to improve it as required by site-specific …

… to a lesser extent thus leading to higher concentrations of nutrients and harmful substances. Both processes have far-reaching impacts on aquatic creatures as well as … to a lesser extent thus leading to higher concentrations of nutrients and harmful substances. Both processes have far-reaching impacts on aquatic creatures as well as …

… g. for gravel-spawning trout species). In inland lakes, increased inputs of organic substances and nutrients can promote algal development and bacterial activity and … g. for gravel-spawning trout species). In inland lakes, increased inputs of organic substances and nutrients can promote algal development and bacterial activity and …

… to pollen Allergies are increased reactions of the immune system to certain foreign substances (allergens). They are the most common chronic diseases in Germany and … … Allergies are increased reactions of the immune system to certain foreign substances (allergens). They are the most common chronic diseases in Germany and …