Jump to main content
US EPA
United States Environmental Protection Agency
Search
Search
Main menu
Environmental Topics
Laws & Regulations
About EPA
Health & Environmental Research Online (HERO)
Contact Us
Print
Feedback
Export to File
Search:
This record has one attached file:
Add More Files
Attach File(s):
Display Name for File*:
Save
Citation
Tags
HERO ID
3230501
Reference Type
Journal Article
Title
Biogeochemical mechanisms controlling trophic state and micropollutant concentrations in a tropical artificial lake
Author(s)
Mar da Costa, NY; Boaventura, GR; Mulholland, DS; Araujo, DF; Moreira, RCA; Faial, KCF; Bomfim, E
Year
2016
Is Peer Reviewed?
Yes
Journal
Environmental Earth Sciences
ISSN:
1866-6280
EISSN:
1866-6299
Publisher
Springer Science & Business Media
Location
NEW YORK
Volume
75
Issue
10
Page Numbers
1
Language
English
DOI
10.1007/s12665-016-5629-y
Web of Science Id
WOS:000376589500007
Abstract
Lake Paranoa is a human-made water reservoir created in 1959 together with the new capital of Brazil (Brasilia). With the demands of urban development, population growth, and land use changes, the lake presented severe deterioration of water quality due to the disposal of wastewater with a high concentration of nutrients. To better elucidate the natural and anthropogenic sources controlling the water quality from Lake Paranoa, this study aimed to (1) investigate the main geochemical processes controlling water quality of the lake and its tributaries; (2) evaluate Lake Paranoa's trophic state; and (3) determine the occurrence and fate of organic micropollutants in Lake Paranoa waters and WWTPs effluents. The waters from Lake Paranoa tributaries are naturally acidic due to the nature of the extremely weathered ferralsols and the crustal material composition. The main processes linked with anthropogenic activities that affect the water quality from the tributaries are the input of untreated domestic wastewater and the dissolution of carbonate minerals arising from construction material residues. Generally, the waters of Lake Paranoa presented low nutrient and chlorophyll-a concentrations, indicating a low trophic state (oligo-mesotrophic). A significant increase in the trophic state (super-eutrophic) was observed at specific regions of the lake that have high nutrient input from tributaries, caused by the continuous disposal of untreated domestic sewage. In Lake Paranoa waters, the organic micropollutants that were identified and quantified (caffeine, bezafibrate, bisphenol A, diethyl phthalate, and nonylphenol) presented concentrations consistent with previous studies and within the threshold of toxicity, except bisphenol A.
Keywords
Water quality; Geochemistry; Trophic state; Micropollutants; Wastewater
Tags
IRIS
•
Diethyl phthalate (DEP)
Database searches
Jan 2017 update
Considered new
Web of Science
Jan 2020 update
Web of Science
Excluded: No Primary Data on Health Effects
Ecosystem effects
•
Phthalates – Targeted Search for Epidemiological Studies
Source – all searches
WOS
Excluded
Source - Jun 2016 Update (Private)
WOS
Source - Dec 2016 Update (Private)
WOS
Home
Learn about HERO
Using HERO
Search HERO
Projects in HERO
Risk Assessment
Transparency & Integrity