Dataset and analysis code for a systematic review of microplastics across non-soil terrestrial systems

DATASET AND ANALYSIS OUTPUTS — microplastics non-soil terrestrial systematic review All files in this deposit are original research artifacts produced by the authors: MPs_extraction_dataset_273records.xlsx The curated data extracted from all screened reports (273 records). The master source for the analysis. MPs_reanalysis_266_v4_1.R The analysis script (R 4.3.3). Reads the analysis-ready dataset, applies the five documented reconciliation removals and two record-level corrections, and produces every tabulation in the /output_tables folder. MPs_reanalysis_266_v4_1_RUN_LOG.txt Console log, corpus counts, R version and package versions from the run. v4.1_output_tables/ (31 CSV files) Every table produced by the analysis script: publication year, geography, polymers, morphology, human evidence, research focus, method presence, reporting completeness and the per-record polymer/shape audits. The review synthesises 266 reports available to 22 May 2025, distinguishing environmental surveillance (n = 158) from experimental evidence (n = 108). All analyses use explicit multi-response denominators; no meta-analytic pooling was performed.