Steroidal Metabolites in Chilean River Sediments Influenced by Pulp Mill Effluents

Hernández,; Eberlin, Marcos N.; Chamorro, Soledad; Becerra, José; Silva, M

doi:10.4067/s0717-97072013000400029

Cited by 3 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Environmental pollution studies were conducted in STPE in Santiago, central Chile (Manzo et al 2019;Honda et al 2018); also, in STPs from the Biobío Region that discharges in the Itata river basin (Bertin et al 2009). Sediments were studied in the Biobío river basin, where secondary treatment PPMEs are discharged into the Laja, Biobío, and Vergara Rivers (Hernández et al 2013) and in the discharge locations of nine STPs distributed along the Pacific Ocean coastline of the Biobío Region (Bertin et al 2011). Finally, sediments were collected from coastal areas (Itata river canyon, Coliumo Bay, Biobío river canyon, and Gulf of Arauco) and the Itata and Biobío river basins (Saavedra et al 2014) (Fig.…”

Section: Geographical Locationsmentioning

confidence: 99%

“…Steroidal metabolite concentrations of β-sitosterol, campesterol, coprostanol, and androstenedione were found in sediments where secondary treatment PPMEs are discharged into rivers (Laja, Biobío, and Vergara Rivers). Coprostanol of human origin was detected and possibly originated from the discharge of domestic sewage (Hernández et al 2013). In an area where PPMS release their effluents into the ocean (southern mouth of Gulf of Arauco), resin acids (abietic, pimaric, dehydroabietic, and isopimaric) were detected in the bile of P. microps and P. adspersus specimens.…”

Section: Compoundsmentioning

confidence: 99%

“…In Chile, the elimination of EDs in effluents that are discharged into bodies of water is not regulated and the current regulation (DS 90/2000) has not been modified since 2000 (Minsegpres 2000). According to Hernández et al (2013), there is a contradiction with the precautionary principle that should be employed in this type of situation, given that the rivers of the Biobío basin are the source of drinking water for a population of three million inhabitants. In this regard, it is necessary to update the current regulation.…”

Section: )mentioning

confidence: 99%

See 2 more Smart Citations

Endocrine disruption in aquatic species of Chile

Valdovinos

Claros

2021

Gayana (Concepc.)

View full text Add to dashboard Cite

Compounds called endocrine disrupters (EDs) interfere with the endocrine systems of aquatic animals such as fish, amphibians, and mollusks. EDs impact sexual development and other functions that can affect the fitness of individuals with potential consequences to the population. We reviewed 45 studies published between 1999 and 2020 on the impact EDs have on aquatic species in Chile, including both indexed and non-indexed articles. The objective of this review is to identify geographic areas and organisms in which endocrine disruption has been detected, the alterations reported, and the compounds involved. We found 11 publications on marine mollusks, 17 on fish, and two on amphibians. Eight publications described bioassays, seven were related to environmental contamination including a review on monitoring the environmental effects of pulp and paper mill effluent (PPME). There is a worldwide concern about the endocrine disruption in aquatic species, however, this concern is still not considered in Chilean environmental regulations. The publications analyzed in this review demonstrate why Chilean environmental authorities should consider EDs in the regulatory process.

show abstract

Section: Geographical Locationsmentioning

confidence: 99%

Section: Compoundsmentioning

confidence: 99%

Section: )mentioning

confidence: 99%

See 1 more Smart Citation

Endocrine disruption in aquatic species of Chile

Valdovinos

Claros

2021

Gayana (Concepc.)

View full text Add to dashboard Cite

show abstract

Pollution Assessment of the Biobío River (Chile): Prioritization of Substances of Concern Under an Ecotoxicological Approach

Alonso

Figueroa

Castro‐Díez

2017

Environmental Management

View full text Add to dashboard Cite

The water demand for human activities is rapidly increasing in developing countries. Under these circumstances, preserving aquatic ecosystems should be a priority which requires the development of quality criteria. In this study we perform a preliminary prioritization of the risky substances based on reported ecotoxicological studies and guidelines for the Biobío watershed (Central Chile). Our specific aims are (1) reviewing the scientific information on the aquatic pollution of this watershed, (2) determining the presence and concentration of potential toxic substances in water, sediment and effluents, (3) searching for quality criteria developed by other countries for the selected substances and (4) prioritizing the most risky substances by means of deterministic ecotoxicological risk assessment. We found that paper and mill industries were the main sources of point pollution, while forestry and agriculture were mostly responsible for non-point pollution. The most risky organic substances in the water column were pentachlorophenol and heptachlor, while the most relevant inorganic ones were aluminum, copper, unionized ammonia and mercury. The most risky organic and inorganic substances in the sediment were phenanthrene and mercury, respectively. Our review highlights that an important effort has been done to monitor pollution in the Biobío watershed. However there are emerging pollutants and banned compounds-especially in sediments-that require to be monitored. We suggest that site-specific water quality criteria and sediment quality criteria should be developed for the Biobío watershed, considering the toxicity of mixtures of chemicals to endemic species, and the high natural background level of aluminum in the Biobío.

show abstract

Removal of stigmasterol from Kraft mill effluent by aerobic biological treatment with steroidal metabolite detection

Chamorro

Vergara

Jarpa

et al. 2016

Journal of Environmental Science and Health, Part A

View full text Add to dashboard Cite

Stigmasterol is a phytosterol contained in Kraft mill effluent that is able to increase over 100% after aerobic biological treatment. This compound can act as an endocrine disrupter as its structure is similar to that of cholesterol. The aim of this study was to evaluate the removal of stigmasterol from Kraft mill effluents treated by a moving bed biofilm reactor (MBBR) with steroidal metabolite detection. The MBBR was operated for 145 days, with a hydraulic retention time of 2 days. Stigmasterol and steroidal metabolites were detected by gas chromatography with a flame ionization detector during MBBR operation. The results show that the MBBR removed 87.4% of biological oxygen demand (BOD5), 61.5% of chemical oxygen demand (COD), 24.5% of phenol and 31.5% of lignin, expressed in average values. The MBBR system successfully removed 100% of the stigmasterol contained in the influent (33 µg L(-1)) after 5 weeks of operation. In that case, the organic load rate was 0.343 kg COD m(-3) d(-1). Furthermore, different steroidal compounds (e.g., testosterone propionate, stigmast-4-en-3-one, 5α-pregnan-12-one-20α-hydroxy, 5α-pregnane-3,11,20-trione and 3α-hydroxy-5α-androstane-11,17-dione were detected in the Kraft mill effluent as potential products of phytosterol biotransformation.

show abstract

Steroidal Metabolites in Chilean River Sediments Influenced by Pulp Mill Effluents

Cited by 3 publications

References 14 publications

Endocrine disruption in aquatic species of Chile

Endocrine disruption in aquatic species of Chile

Pollution Assessment of the Biobío River (Chile): Prioritization of Substances of Concern Under an Ecotoxicological Approach

Removal of stigmasterol from Kraft mill effluent by aerobic biological treatment with steroidal metabolite detection

Contact Info

Product

Resources

About