Blue algae in the water: Danger for bathers and habitat
Blue algae in the water: Danger for bathers and habitat
In the past few weeks there have been increased warnings of blue-green algae in Saxony-Anhaltic waters. These organisms, which are often misleading as algae, are actually cyanobacteria. They are particularly active in warm weather and strong sunlight. But over -fertilization of the waters also plays an important role in their growth. Nutrients from agricultural fertilization get into the water and can thus promote flowering blue -green algae.
Lakes and rivers are particularly affected, which are susceptible to these organisms due to their location and environmental influences. In the past few days, the authorities have urgently emphasized that bathing in affected waters can be dangerous. This should be taken seriously by the bathers, since the presence of blue -green algae not only affects water quality, but also serious health risks if you swim in the affected waters.detection of blue algae
Blue algae are relatively easy to see because the appearance of the water is noticeably changed. Clarity and freshness of the waters of a cloudy, greenish or blue-greenish coloring. In many cases, visible streaks or algae carpet -like structures also form on the water surface. It is not uncommon for dead fish to drive on the surface, which is another sign of a high proportion of blue -green algae in which water. If necessary, these symptoms should be viewed as a warning signal.
The health risks related to blue algae are diverse. Some types produce toxins that can cause skin reactions, breathing problems and even more serious diseases. Particularly sensitive groups such as children or people with a weakened immune system are at risk. Therefore, it is advisable to avoid the water in question and adapt your own swimming habits accordingly to minimize potential dangers.
important prevention measures
Additional measures can be taken to reduce the nutrient pollution of the waters. This includes responsible fertilization in agriculture and avoiding waste products that can get into water. Protecting the waters is a common responsibility that affects both agriculture and the local population. It is important that each individual contributes to protecting our waters and thus our health.
final thoughts
Blue algae represent a serious phenomenon that not only affects water quality, but can also become a danger to swimmers. The local and regional authorities must continue to actively deal with the causes of this problem in order to find long -term solutions. Sensitization and education are crucial so that each one is informed about the risks and can act to protect our waters. It is the responsibility of all of us to preserve the sensitive ecosystem of our waters and thus also secure our health.
causes of blue -green algae growth
The main causes for the growth of blue algae can be found in the changes in water quality and the weather conditions. The increase in nutrients, especially phosphates and nitrates, is crucial. These nutrients often get into the water through agricultural drains, industrial emissions or through sewage treatment plants. Particularly intensive agricultural practices help ensure that the nutrient pollution of the waters increases. A persistent surplus of nutrients can lead to so -called eutrophication, in which the growth of microorganisms, including cyanobacteria, is strongly accelerated.
In addition, heavy rain events and the associated surface drainage are responsible for the entries of nutrients in nearby waters. These entries are favored by climate change, which leads to more frequent extreme weather events. This is particularly worrying because such conditions represent a permanent threat to the quality of the drinking water.
health risks through blue algae
Blue algae can pose health risks for humans and animals. Some types of cyanobacteria produce toxins that are also known as cyanotoxins. These toxins can cause serious health problems when touched, inhalation or taking it. The most common symptoms include skin reactions such as rashes, breathing problems and gastrointestinal diseases. People with existing health problems or weakened immune system are particularly at risk.
The World Health Organization (WHO) has published guidelines that provide information on the risks of blue -green algae and recommends for monitoring and dealing with affected waters. Numerous bathing beaches and lakes have to be tested regularly for the relevance of blue -green algae to minimize the risk to the public.
measures to combat blue algae
To prevent the spread of blue algae, various measures are necessary. At the political level, stricter regulations for reducing nutrient entries are essential. This includes monitoring agricultural practices and the implementation of ecological cultivation methods. Water protection areas should be set up to protect sensitive waters.
In addition, educational campaigns are required to inform the public about the dangers of blue -green algae and the correct handling of contaminated water. Citizens should be aware of the signs of flowering and dangers to humans and animals. The specialist community should also work on the research of the biological control of blue algae to identify natural enemies and to contain the spread of the bacteria.
research and monitoring
The monitoring of waters on the presence of blue algae is crucial for the protection of the environment and health of the population. In Germany there are various institutions that deal with the examination of water quality, including the Federal Environment Agency and the state offices for the environment. These institutions regularly analyze water samples and monitor the development of blue -grade flowers.
New technologies, such as the use of satellite images and automated sensors, have significantly improved monitoring. These techniques enable early detection of blue -grade flowers and help to take measures in good time. Thanks to such innovations, less accessible waters can be monitored more effectively, which is crucial for the timely warning of the public.
For more information about water quality and blue -green algae, please visit the website of the Federal Environment Ministry .