Eco-labeled composts reduce microplastic contamination and mitigate heavy metal bioavailability in agricultural ecosystems

Urban Farm DB summary

An ATR-FTIR analysis of 11 commercial compost products found microplastics in every sample, averaging 137.65 ± 6.01 items/kg dry weight and up to 631.14 mg/kg. Eco-labeled composts had significantly lower microplastic abundance, size, and concentration than non-eco products. Microplastic concentration correlated negatively with pH and nitrogen content and positively with organic matter content.

Only numbers and their conditions are stored, as structured data — never the source's own sentences. Metric and condition names stay in English, as coded.

• 137.65 items_per_kg_dw

  microplastic abundance(compost microplastics)

  Compostn = 11

  region

  Spain

  method

  ATR-FTIR spectroscopy

• 631.14 mg_per_kg_dw

  microplastic concentration max(compost microplastics)

  Compostn = 11

  region

  Spain

• significantly lower vs non eco↓ DecreaseStatistically significant

  microplastic abundance(eco labeled compost)

  Compostn = 11Control: non-eco-labeled compost

  region

  Spain

• 15

  polymer types identified(compost microplastic polymer types)

  Compostn = 11

  region

  Spain

Direction of conclusions

Each author conclusion is recorded only as a coded direction per topic. Read the original for the conclusion itself.

• Soil contaminationSupportsWith caveats