We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

See Pricing

What's Your Topic?

Hire a Professional Writer Now

The input space is limited by 250 symbols

What's Your Deadline?

Choose 3 Hours or More.
Back
2/4 steps

How Many Pages?

Back
3/4 steps

Sign Up and See Pricing

"You must agree to out terms of services and privacy policy"
Back
Get Offer

Comparison of the Heavy Metal Bioaccumulation Capacity of Epiphytic Moss and Lichen

Hire a Professional Writer Now

The input space is limited by 250 symbols

Deadline:2 days left
"You must agree to out terms of services and privacy policy"
Write my paper

Comparison of the Heavy Metal Bioaccumulation Capacity of Epiphytic Moss and Lichen

Biomonitors are organisms used in monitoring pollution and air quality in specific areas. Air pollution can cause bioaccumulation of elements, especially heavy metals, into these organisms. This makes them perfectly suited in studying several parameters that would give an idea about the degree of air pollution in that area. In this study, the heavy metal bioaccumulation capacity of two biomonitors, Scorpiurum Circinatum and Pseudevernia furfuracea (the former being a moss and the latter a lichen), were tested and compared.

Don't use plagiarized sources. Get Your Custom Essay on
Comparison of the Heavy Metal Bioaccumulation Capacity of Epiphytic Moss and Lichen
Just from $13,9/Page
Get custom paper

The samples were first collected then washed and cleaned with distilled water. Then, 0.75g of each moss and lichen were placed in separate nylon mesh bags. Three bags each of the moss and lichen were stationed at the busiest urban streets of Acerra, Italy. Another set of samples were placed at sites located in Mount Faito to serve as controls. The bags were sprayed with distilled water to avoid dehydration.

Each month, a bag was retrieved from each sites and tested for results. The retrieved samples were then homogenized and subjected to a mixture of 6 mL of 65% HNO3, 2 mL of 39% H2O2 and 0.2 mL of HF. The resulting materials were tested for their As, Cd, Cr, Pb, V, Cu, Zn, Fe, Al and Mn content by inductively coupled plasma-mass spectrometry. The percentage of dead cells for each sample was also calculated by observing cells in the moss gametophytes and lichen thalli.

The results show a significant increase of metal content in both samples during the exposure. It is evident, however, that the moss is a better bioaccumlator than the lichen. Firstly, the element concentration of the moss is higher than the lichen, suggesting the moss’ better capability of collecting heavy metals. There is also a steady increase of accumulated particles in the moss as the months of exposure increases. This is in contrast with the lichen, where some elements show a discontinuous trend, like Cd, an element more likely to be leached from dead specimens. Furthermore, the moss has a higher surface/volume ratio, allowing a higher bioaccumulation capacity.

 

Cite this Comparison of the Heavy Metal Bioaccumulation Capacity of Epiphytic Moss and Lichen

Comparison of the Heavy Metal Bioaccumulation Capacity of Epiphytic Moss and Lichen. (2016, Sep 04). Retrieved from https://graduateway.com/comparison-of-the-heavy-metal-bioaccumulation-capacity-of-epiphytic-moss-and-lichen/

Show less
  • Use multiple resourses when assembling your essay
  • Get help form professional writers when not sure you can do it yourself
  • Use Plagiarism Checker to double check your essay
  • Do not copy and paste free to download essays
Get plagiarism free essay

Search for essay samples now

Haven't found the Essay You Want?

Get my paper now

For Only $13.90/page