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Supplemental Information

Data about TSP concentrations, lead concentrations and isotopes

DOI: 10.7287/peerj.preprints.27764v1/supp-1

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Ling Cong conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, prepared figures and/or tables, authored or reviewed drafts of the paper, approved the final draft.

Jiexiu Zhai contributed reagents/materials/analysis tools, authored or reviewed drafts of the paper, approved the final draft.

Guoxin Yan contributed reagents/materials/analysis tools, authored or reviewed drafts of the paper, approved the final draft.

Jiakai Liu contributed reagents/materials/analysis tools, authored or reviewed drafts of the paper, approved the final draft.

Yanan Wu contributed reagents/materials/analysis tools, authored or reviewed drafts of the paper, approved the final draft.

Yu Wang performed the experiments, authored or reviewed drafts of the paper, approved the final draft.

Zhenming Zhang conceived and designed the experiments, authored or reviewed drafts of the paper, approved the final draft, help checking grammar.

Mingxiang Zhang authored or reviewed drafts of the paper, approved the final draft.

Data Deposition

The following information was supplied regarding data availability:

The raw measurements are provided in the supplementary files 1. The raw data were used to find the seasonal variation and calculate EF values.

Funding

This research was supported by the National Key R&D Program of China (2017YFC0505903) and the Fundamental Research Funds for the Central Universities (2016JX05). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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