Reference Levels for Heavy Metals in Soil in the City of Cerro de Pasco - Peru - 2020

Heiner Saldaña, Cesar Muñoz, Doris Esenarro, Ciro Rodriguez, Pedro Amaya

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This research focuses on determining the reference levels for aluminum, barium, chromium, copper, manganese, lead and zinc were determined in the soils surrounding the city of Cerro de Pasco, considering the background levels of these metals and the physicochemical properties of the soil. The study area had an extension of 3201 ha of land, performing a simple random statistical sampling, obtaining 21 composite samples from 63 simple and superficial samples (0–30 cm deep), where the total concentrations of heavy metals are correlated with the physicochemical parameters of the soil. From the results, there is a correlation coefficient greater than 0.7 with respect to the cation exchange capacity (C.E.C.), organic matter (OM) and pH, for almost all the metals evaluated, except for chromium, manganese and lead. As a result of this correlation, linear equations were generated from CIC, OM and pH, to define the reference levels of aluminum (24439 mg/kg), barium (161 mg/kg), copper (29 mg/kg) and zinc. (552mg/kg). kg), considering UCL95 as the background level since it presented a better statistical fit with respect to the descriptive statistics. However, the expression NR=X¯+nDE was used to establish the reference levels of chromium (26 mg/kg), manganese (966 mg/kg) and lead (62 mg/kg), because they did not show a correlation with the physicochemical properties of the soil.

Original languageEnglish
Title of host publicationEnvironment and Sustainable Development - Proceedings of the 2021 6th Asia Conference on Environment and Sustainable Development
EditorsKeiji Ujikawa, Mikio Ishiwatari, Eric van Hullebusch
PublisherSpringer Science and Business Media Deutschland GmbH
Pages14-28
Number of pages15
ISBN (Print)9789811917035
DOIs
StatePublished - 2022
Event6th Asia Conference on Environment and Sustainable Development, ACESD 2021 - Phuket, Thailand
Duration: 6 Nov 20218 Nov 2021

Publication series

NameEnvironmental Science and Engineering
Volume2
ISSN (Print)1863-5520
ISSN (Electronic)1863-5539

Conference

Conference6th Asia Conference on Environment and Sustainable Development, ACESD 2021
Country/TerritoryThailand
CityPhuket
Period6/11/218/11/21

Bibliographical note

Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

Keywords

  • Background levels
  • Heavy metals
  • Reference levels
  • UCL95

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