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lichens are sensitive to sulfur dioxide, they are biological indicators.
The cleaner the air the more lichens will grow.
Therefore if there are houses right by a road, if you look on the roof there would be less lichens as there would be more sulfur dioxide in the air because of pollution.
Hope this helps By Troy Flynn
Wiki User
∙ 9y ago
Wiki User
∙ 10y agoLichens act as a very reliable pollution indicator. These are released into the air as a byproduct when fossil fuels are burned, and can be detected. The amount of lichens in the air therefore, indicates the pollution levels.
Wiki User
∙ 14y agoIf they are all over the place then their is more chemicals in the rain/area.
Wiki User
∙ 12y agoLichens absorb water and minerals from rainwater and directly from the atmosphere. This makes them extremely sensitive to pollution. This means there is not many Lichens in towns or Cities.
Wiki User
∙ 11y agoyes because they can withstand heat and cold but not smoke or fumes and this is how we know they are good indicators of air quality
Wiki User
∙ 10y agoLichen thrive where the air quality is cleanest.
Wiki User
∙ 11y agoSulphur Dioxide
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Which algae is pollution indicator?
Lichens are known as pollution indicator.
Could air pollution be responsible for the absence of certain lichens in national parks?
yes they can
Why are lichens easily affected by pollution?
Some do and some do not. Lichens are often used as pollution indicators because as pollution increases, more species die until there are only one or two species left.
What are the indicator organisms for fecal pollution in the US?
Both E. Coli and PSA (Pseudomonas aeruginosa) are used to indicate pollution by raw sewage. The ratio of the two can be used to indicate if the sewage is of human or animal origin.
Explain how the presence of algae can indicate either pollution or productivity of a body of water?
The presence of algae can indicate either pollution or productivity in a body of water because algae has a very narrow niche, meaning that they can only live in specific areas.
When do lichens grow?
Lichens need sunlight, water, nutrients from the air including dust and some nutrients from the substrate they grow on they are sensitive to sulfur dioxide there are fluffy lichens, crusty lichens, scaly lichens, leafy lichens etc
What is the ecological use of lichens?
Lichens are air pollution indicators.
Which algae is pollution indicator?
Lichens are known as pollution indicator.
What are Lichens adversely affected by?
Pollution
What do you use lichens for?
Because of damp areas where they are spawned
What is the use of lichen?
Lichens are air pollution indicators.
Which of the following work as bioindicator of environmental pollution?
Lichens
Lichens can be used to estimate levels of pollution from?
Sulfur dioxide
How might you use lichens to collect data and determine the air quality?
Lichens can be quite tempermental with air pollution. I expect certain types of lichen would have a greater resistance to some pollutants, so a lot of that type of lichen (and not many other types) could indicate higher than normal levels of a pollutant.
Could air pollution be responsible for the absence of certain lichens in national parks?
yes they can
How do lichens change their environment so other organisms can live there?
Lichens absorb water and minerals from the air. As a result, they are easily affected by pollution. Thus the presence of lichens are a good source of air quality for other organisms
Why are lichens easily affected by pollution?
Some do and some do not. Lichens are often used as pollution indicators because as pollution increases, more species die until there are only one or two species left.
