Balbriggan Lichen

After we discovered that Skerries is an unpolluted town with green lichen, we decided to find out if Balbriggan was polluted or unpolluted. We discovered that the lichen found in Balbriggan tended to be more orange and red as opposed to Skerries's green and white.

This tells us that Balbriggan is a polluted town.The orange and red lichen can grow when there are high levels of pollution in the air as they are more resilient than the green lichen. The lichen that we found in Balbriggan were mainly orange and red and we searched mainly for lichen on trees.

Balbriggan has high levels of pollution because they have quite a large population. There are lots of factories in Balbriggan so they produce many fumes. Balbriggan is a fairly large town so people tend to drive places rather than walk. This releases lots of fumes from cars and pollutes the air.

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