You are hereHome | Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters
Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewatersView Crossref metadata(active tab) <div id="edit-xml" class="form-item form-type-item"> <?xml version="1.0"?> <doi_batch version="4.4.1" xmlns="http://www.crossref.org/schema/4.4.1" xmlns:jats="http://www.ncbi.nlm.nih.gov/JATS1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.crossref.org/schema/4.4.1 http://www.crossref.org/schemas/crossref4.4.1.xsd"><head><doi_batch_id>000689</doi_batch_id><timestamp>1713297889</timestamp><depositor><depositor_name>University of the Aegean</depositor_name><email_address>uoa@university.com</email_address></depositor><registrant>Global NEST Journal</registrant></head><body><journal><journal_metadata><full_title>Global NEST Journal</full_title><full_title>Global NEST: the international Journal</full_title><issn media_type="print">1790-7632</issn><issn media_type="electronic">2241-777X</issn></journal_metadata><journal_issue><titles><title>Issue 1</title></titles><publication_date><month>03</month><year>2024</year></publication_date><journal_volume><volume>19</volume></journal_volume><issue>1</issue></journal_issue><journal_article><titles><title>Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters</title></titles><abstract xmlns="http://www.ncbi.nlm.nih.gov/JATS1"><p><p>Laboratories produce a large volume of wastewaters containing different chemical indicators, organic species for which there is no complete knowledge about their effects in the aquatic environment.</p> <p>The aim of this work was to evaluate the ecotoxicity of four chemical indicator substances commonly used in titrations (sodium diphenylamine-4-sulfonate, phenolphthalein, methyl orange, and eriochrome black T) by applying two distinct bioassays that evaluated the growth inhibition of the microalga <em>Chlorella vulgaris</em> and the acute immobilization of the microcrustacean <em>Daphnia magna</em>.</p> <p>All the indicators showed growth inhibition rates in the chronic test performed with the alga C. vulgaris. Only phenolphthalein and eriochrome black-T showed high immobilization rates on the acute test for D. magna. C. vulgaris showed higher sensitivity to the chemical indicators tested than D. magna. Eriochrome black T was the most toxic for both test organisms and, according to the effective concentration that causes inhibition on 50% of C. vulgaris population, it can be considered as “highly toxic to aquatic organisms”. Phenolphthalein and methyl orange may be classified as “toxic to aquatic organisms” and sodium diphenylamine-4-sulfonate is the least toxic, only being considered as “harmful”.</p> <p>This work increases the awareness of the hazardous effects of these chemical indicators and reinforces the need of improved solutions to manage and treat laboratory effluents.</p> </p></abstract><publication_date><month>03</month><day>03</day><year>2017</year></publication_date><pages><first_page>94</first_page><last_page>99</last_page></pages><publisher_item><identifier id_type="pii">gnest_02051</identifier></publisher_item><doi_data><doi>10.30955/gnj.002051</doi><timestamp>1713297889</timestamp><resource>https://journal.gnest.org/publication/gnest_02051</resource></doi_data></journal_article></journal></body></doi_batch> </div>
