Potential microbial contamination during sampling of permafrost soil assessed by tracers

Earth & Environmental Sciences

• permafrost 100%
• tracer 80%
• contamination 67%
• sampling 57%
• soil 43%
• active layer 30%
• soil analysis 17%
• microbial activity 12%
• microbial community 10%
• protocol 10%
• penetration 10%
• plastic 9%
• drilling 9%
• protein 9%
• biomass 7%
• experiment 5%