Quality of greywater from an urban city district and treated effluent from an outdoor green wall in Helsingborg

A total of 8 samples of influent and effluent greywater were taken between October 2023 and June 2024, in different months to assess seasonal variations. The analyzed parameters include organic matter (e.g. TSS, BOD, COD, TOC), total nitrogen, total phosphorus, salt, and microorganisms (E. coli, enterococci, Clostridium perfringens, Legionella spp, Pseudomonas aeruginosa, and Campylobacter).

Supporting parameters e.g. turbidity, pH, and conductivity are also included in the dataset. Files 1. Study_Description: This file includes the summary of the research study, data collection and the standard analytical methods used for analyzing different parameters. 2.