Additional file 3 of Exploring urban garden ponds: considering chemical pollution as a limiting factor for insect diversity in cities

Supplementary material 3. List of targeted substances and their measured concentrations in ng per mL pond water. Two controls were measured containing extracted ultrapure TKA water. Substances that were detected in both controls and were in the same concentration range as the samples were excluded from analysis. Each substance was assigned to a substance class.

补充材料3：靶向物质列表及其在池塘水体中的测定浓度（单位：纳克/毫升）。共设置两份以萃取超纯TKA水为基质的对照样本。若某物质在两份对照样本中均被检出，且浓度范围与待测样本一致，则将其排除在后续分析之外。所有待测物质均被划分至相应的物质类别。