Abstract
The ecological impacts of tin mining activities in the Bangka island is the presence of heavy metal contamination that accumulated in the environment. One of the heavy metals that was often found in post-tin mining areas is lead (Pb). Mycoremediation is a method that can be used to reduce lead pollution in post-tin mining areas. This study aimedto isolate, resistance test and identify to Pb-resistant soil fungi (rhizosphere) in the post-tin area of Bangka. The research methods included isolation, test of fungal resistance to Pb metal (Control, 150ppm, 250ppm, 350ppm, 500ppm, 1,000ppm, 5,000ppm and 10,000ppm), macroscopic and microscopic identification. The results showed that 9 isolates tested, there were 6 isolates that were resistant to Pb up to the concentration of 5,000 ppm, namely isolates I1(Rhizoctonia), I2(Penicilllium sp1), I5(Papulaspora), I6(Penicillium sp2), I7(Penicillium sp3) and I9 (Sclerotium). Three isolates of soil fungus were not resistant to Pb up to a concentration of 5,000 ppm, namely isolates I4 (Sclerotium), I8(Microsporum), and I10(Cladosporium). All isolates did not grow anymore at a concentration of 10,000 ppm of Pb.
Highlights
The ecological impacts of tin mining activities in the Bangka island is the presence of heavy metal contamination that accumulated in the environment
Forest area, the loss of germ plasm due to The impact of lead on humans is that it can the loss of forest ecosystems and habitats damage body organs, especially the for animals, causing the environment to be nervous system, blood formation system, below quality standards due to decreasing kidneys, heart system and reproductive soil quality
Lead can cause anemia, Mustikasari, 2019). Another negative hypertension, impaired blood synthesis, impact caused by tin mining is the presence hyperactivity, brain damage and liver of heavy metal contamination that disease (Amaral et al, 2010)
Summary
Tin mining activities on Bangka island body of organisms through the food chain have an ecological impact on the and forms food webs and ends up in environment. Forest area, the loss of germ plasm due to The impact of lead on humans is that it can the loss of forest ecosystems and habitats damage body organs, especially the for animals, causing the environment to be nervous system, blood formation system, below quality standards due to decreasing kidneys, heart system and reproductive soil quality Another negative hypertension, impaired blood synthesis, impact caused by tin mining is the presence hyperactivity, brain damage and liver of heavy metal contamination that disease (Amaral et al, 2010). Several studies have shown that the detoxification process for toxic materials concentration of lead heavy metal from a polluted environment using fungi contamination in post-tin mining areas is (Asiriuwa et al, 2013). The main object of this research agents, because these fungi have resistance project is a soil sample taken from Bangka and tolerance for heavy metals in the Tin Post Mining. Mining fields through the identification and Research Sampling resistance test process
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