{"id":989730,"date":"2022-12-02T11:22:00","date_gmt":"2022-12-02T14:22:00","guid":{"rendered":"https:\/\/biogroup.com.ar\/ecotoxicity\/"},"modified":"2026-05-19T06:53:57","modified_gmt":"2026-05-19T09:53:57","slug":"ecotoxicity","status":"publish","type":"page","link":"https:\/\/biogroup.com.ar\/en\/ecotoxicity\/","title":{"rendered":"Ecotoxicity"},"content":{"rendered":"\t\t
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\n \ud83d\udc1f Daphnia \u00b7 Microalgae \u00b7 Vibrio \u00b7 Fish \u00b7 Plants \u00b7 Earthworms \u00b7 Ames Test \u00b7 OECD \u00b7 EPA \u00b7 ISO\n <\/div>\n

\n Ecotoxicity & Bioassays<\/span>\n <\/h1>\n

\n The integrated biological evidence that physicochemical analysis alone cannot provide.\n <\/p>\n

\n Ecotoxicity testing \u2014 commonly called \"bioassays\"<\/strong>\n \u2014 measures the actual toxic or adverse effects of samples on living organisms.\n Biogroup has developed a wide variety of bioassay techniques covering multiple\n trophic levels: from bioluminescent bacteria and microalgae through cladocerans,\n fish, earthworms and terrestrial plants \u2014 all under OECD,\n ISO and US EPA validated methods.<\/strong>\n <\/p>\n

\n A sample can comply with every physicochemical regulatory limit and still be toxic\n to the receiving ecosystem \u2014 because no chemical analysis can measure the combined\n effect of all contaminants present, or the synergistic interactions between them.\n The bioassay is the only test that answers the question that actually matters:\n \"Does this harm the ecosystem?\"<\/strong>\n <\/p>\n

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7 test organisms<\/div>\n
Multiple trophic levels<\/div><\/div>\n
OECD \u00b7 ISO \u00b7 EPA<\/div>\n
Internationally validated<\/div><\/div>\n
EC50 \u00b7 LC50 \u00b7 NOEC<\/div>\n
Key toxicity endpoints<\/div><\/div>\n
+35 years<\/div>\n
Ecotoxicology expertise<\/div><\/div>\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\n \u26a0\ufe0f The limit of physicochemical analysis<\/div>\n
\n A physicochemical analysis only measures what it knows to look for. An\n industrial effluent may contain hundreds of compounds \u2014 many without a\n specific regulatory limit \u2014 that act in combination to damage the\n receiving ecosystem. \"In compliance\" does not mean \"not toxic\".<\/div>\n <\/div>\n
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\n \u2705 What the bioassay adds<\/div>\n
\n The bioassay integrates the combined effect of all contaminants present \u2014\n including unknown compounds, mixture synergisms and sub-threshold interactions.\n It answers the question that matters for environmental protection: does this\n matrix harm the organisms in the receiving ecosystem?<\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Matrices evaluated \u2014 what Biogroup tests<\/span>\n
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\n Ecotoxicity testing is applied to all environmental matrices<\/div>\n
\n The appropriate test organism and method are selected based on the matrix\n and the regulatory or commercial objective.<\/div>\n <\/div>\n
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\ud83c\udfed<\/div>
Industrial effluents<\/div>
Before and after treatment \u00b7 permit compliance \u00b7 EIA<\/div><\/div>
\ud83c\udf0a<\/div>
Surface & groundwater<\/div>
Rivers \u00b7 streams \u00b7 reservoirs \u00b7 aquifers<\/div><\/div>
\ud83d\uddd1\ufe0f<\/div>
Waste leachates<\/div>
TCLP extracts \u00b7 landfill leachate \u00b7 H14 hazard characteristic<\/div><\/div>
\ud83c\udfde\ufe0f<\/div>
Soil extracts<\/div>
Contaminated site characterisation \u00b7 remediation validation<\/div><\/div>
\ud83e\uddea<\/div>
Chemicals & products<\/div>
Chemical registration \u00b7 REACH \u00b7 product safety<\/div><\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Multi-species test battery \u2014 covering all trophic levels<\/span>\n
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\n From bioluminescent bacteria to fish \u2014 the full aquatic and terrestrial trophic chain<\/div>\n
\n Different organisms occupy different positions in the food chain and respond\n differently to different contaminants. A comprehensive ecotoxicity evaluation\n should cover producers (algae), primary consumers (cladocerans), secondary\n consumers (fish) and decomposers (bacteria) \u2014 plus terrestrial organisms\n when the matrix or application requires it.<\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\ud83e\udda0<\/div>\n
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\n Decomposer \u00b7 OECD 481 \u00b7 ISO 11348-1\/2\/3 \u00b7 DIN 38412-L34<\/div>\n
\n Vibrio fischeri<\/em> \u2014 Bioluminescence inhibition<\/div>\n <\/div>\n <\/div>\n <\/div>\n
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\n Vibrio fischeri<\/em> is a marine bioluminescent bacterium whose natural\n light emission is proportional to metabolic activity. Toxic compounds inhibit\n cellular respiration and reduce luminescence \u2014 the inhibition is measured\n photometrically as % reduction relative to controls. The fastest ecotoxicity\n test available \u2014 results in 15\u201330 minutes. Ideal for rapid screening and\n real-time effluent monitoring.<\/div>\n
\n Endpoints:<\/strong> EC50 (15 min) \u00b7 EC50 (30 min) \u00b7 % inhibition
\n Duration:<\/strong> 15\u201330 minutes
\n Methods:<\/strong> OECD 481 \u00b7 ISO 11348-1\/2\/3
\n Best for:<\/strong> Rapid screening \u00b7 process control \u00b7 effluent monitoring\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\ud83c\udf3f<\/div>\n
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\n Primary producer \u00b7 OECD 201 \u00b7 ISO 8692 \u00b7 EPA 600\/9-78-018<\/div>\n
\n Microalgae \u2014 Growth inhibition (Pseudokirchneriella subcapitata \u00b7 Selenastrum carpicornutum \u00b7 Chlorella vulgaris<\/em>)<\/div>\n <\/div>\n <\/div>\n <\/div>\n
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\n Green microalgae are the primary producers of aquatic ecosystems \u2014 their\n inhibition has cascade effects on all higher trophic levels. The test measures\n the inhibition of photosynthetic growth over 72 hours by comparing the biomass\n (cell count or chlorophyll fluorescence) of treated cultures against controls.\n Particularly sensitive to herbicides, metals and nutrient-disrupting compounds.<\/div>\n
\n Endpoints:<\/strong> EC50 (72 h) \u00b7 NOEC \u00b7 LOEC \u00b7 growth rate
\n Duration:<\/strong> 72 hours
\n Methods:<\/strong> OECD 201 \u00b7 ISO 8692 \u00b7 EPA 600\/9-78-018
\n Best for:<\/strong> Herbicides \u00b7 metals \u00b7 nutrient-disrupting compounds\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\ud83e\udd90<\/div>\n
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\n Primary consumer \u00b7 OECD 202 \u00b7 ISO 6341 \u00b7 EPA 821-R-02-012<\/div>\n
\n Cladocera \u2014 Daphnia magna \u00b7 Ceriodaphnia dubia \u00b7 Daphnia pulex<\/em><\/div>\n <\/div>\n <\/div>\n <\/div>\n
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\n Daphnia magna<\/em> is the global reference organism for aquatic ecotoxicology \u2014\n the most sensitive freshwater invertebrate to a wide range of industrial contaminants.\n The acute test measures immobilisation at 24 h and 48 h; the chronic test\n (21-day OECD 211) measures reproduction and survival. Ceriodaphnia dubia<\/em>\n provides a shorter-duration chronic endpoint (7 days) more appropriate for effluent\n samples. EC50 is calculated by Probit analysis.<\/div>\n
\n Endpoints:<\/strong> EC50 (24 h & 48 h) \u00b7 NOEC \u00b7 LOEC \u00b7 reproduction
\n Duration:<\/strong> 24\/48 h (acute) \u00b7 7\u201321 days (chronic)
\n Methods:<\/strong> OECD 202 \u00b7 OECD 211 \u00b7 ISO 6341
\n Best for:<\/strong> Industrial effluents \u00b7 metals \u00b7 pesticides \u00b7 H14 classification\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\ud83d\udc1f<\/div>\n
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\n Secondary consumer \u00b7 OECD 203 \u00b7 OECD 210 \u00b7 ISO 7346<\/div>\n
\n Fish \u2014 Danio rerio \u00b7 Oncorhynchus mykiss \u00b7 Pimephales promelas<\/em><\/div>\n <\/div>\n <\/div>\n <\/div>\n
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\n Fish are the aquatic vertebrates most used as bioindicators of environmental\n quality and the organisms the general public most readily associates with\n ecological damage. Danio rerio<\/em> (zebrafish) is the standard laboratory\n model; Oncorhynchus mykiss<\/em> (rainbow trout) is used for cold-water\n assessments and is particularly relevant for discharge permits into fishing\n rivers. Acute test: LC50 at 96 hours. Chronic test: OECD 210 (early life stage).<\/div>\n
\n Endpoints:<\/strong> LC50 (96 h) \u00b7 NOEC \u00b7 LOEC \u00b7 sub-lethal effects
\n Duration:<\/strong> 96 h (acute) \u00b7 28\u201360 days (chronic)
\n Methods:<\/strong> OECD 203 \u00b7 OECD 210 \u00b7 ISO 7346
\n Best for:<\/strong> EIA \u00b7 river discharge permits \u00b7 litigation support\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\ud83e\udeb1<\/div>\n
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\n Terrestrial ecosystem \u00b7 OECD 207 \u00b7 ISO 11268 \u00b7 OECD 208<\/div>\n
\n Earthworms \u2014 Eisenia fetida \u00b7 E. andrei<\/em><\/div>\n <\/div>\n <\/div>\n <\/div>\n
\n
\n Eisenia fetida<\/em> is the standard test organism for terrestrial soil\n ecotoxicology. The acute test determines LC50 at 14 days; the chronic test\n measures reproduction and biomass over 28 days. Critical for contaminated soil\n classification, sludge land application assessments and H14 ecotoxicity\n characteristic under Ley 24.051. Organic contaminants bioaccumulate in\n earthworm tissue \u2014 a pathway to higher terrestrial predators.<\/div>\n
\n Endpoints:<\/strong> LC50 (14 d) \u00b7 reproduction NOEC \u00b7 biomass
\n Duration:<\/strong> 14 days (acute) \u00b7 28 days (chronic)
\n Methods:<\/strong> OECD 207 \u00b7 ISO 11268-1\/2
\n Best for:<\/strong> Contaminated soil \u00b7 sludge application \u00b7 H14\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\ud83c\udf31<\/div>\n
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\n Terrestrial producer \u00b7 OECD 208 \u00b7 ISO 11269 \u00b7 EN 13432 Annex E<\/div>\n
\n Phytotoxicity \u2014 Lactuca sativa \u00b7 Allium cepa \u00b7 Lycopersicon esculentum \u00b7 Zea mays \u00b7 Glycine max \u00b7 Brassica oleracea \u00b7 Avena sativa \u00b7 Lolium perenne \u00b7 Cucumis sativus \u00b7 Daucus carota<\/em><\/div>\n <\/div>\n <\/div>\n <\/div>\n
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\n Seed germination and root elongation tests with a diverse panel of monocots\n and dicots \u2014 the broadest phytotoxicity assessment available. Lactuca sativa<\/em>\n (lettuce) and Allium cepa<\/em> (onion) are the most sensitive and widely used\n species. Critical for compost and soil amendment quality certification under\n IRAM 29421:2019 \/ EN 13432 (Annex E: plant growth test). Also applied to\n contaminated soil characterisation and irrigation water assessment.<\/div>\n
\n Endpoints:<\/strong> % germination \u00b7 root elongation EC50 \u00b7 NOEC
\n Duration:<\/strong> 5\u201314 days
\n Methods:<\/strong> OECD 208 \u00b7 ISO 11269 \u00b7 EN 13432 Annex E
\n Best for:<\/strong> Compostability \u00b7 soil quality \u00b7 sludge \u00b7 irrigation water\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\ud83e\uddeb<\/div>\n
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\n Cellular level \u00b7 ISO 10993-5 \u00b7 OECD TG 129 \u00b7 MTT \/ Neutral Red<\/div>\n
\n Cytotoxicity \u2014 mammalian cell lines in vitro<\/em><\/div>\n <\/div>\n <\/div>\n <\/div>\n
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\n Cell viability assessment using mammalian cell lines \u2014 MTT reduction\n (mitochondrial activity) or Neutral Red uptake (lysosomal integrity).\n Provides information on toxic potential at the molecular level and complements\n the ecological tests when human health risk assessment is also required.\n Particularly applied to complex matrices (leachates, concentrated extracts)\n where standard chemical analysis cannot identify all toxicants.<\/div>\n
\n Endpoints:<\/strong> IC50 \u00b7 % cell viability \u00b7 dose-response curve
\n Duration:<\/strong> 24\u201372 hours
\n Methods:<\/strong> ISO 10993-5 \u00b7 OECD TG 129
\n Best for:<\/strong> Complex matrices \u00b7 emerging contaminants \u00b7 health risk\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Ames Test \u2014 mutagenicity and carcinogenicity screening<\/span>\n
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\n The Ames Test \u2014 rapid mutagenicity and carcinogenicity screening<\/div>\n
\n A biological assay to evaluate the mutagenic potential of chemical compounds\n \u2014 and by extension, their carcinogenic potential.<\/div>\n <\/div>\n
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\n How the Ames Test works<\/div>\n
\n The Ames Test uses specially engineered strains of Salmonella\n typhimurium<\/em> that are unable to synthesise histidine (his\u207b). When\n exposed to a mutagenic compound, the DNA is damaged and reverse mutations\n (revertants) occur at an increased rate \u2014 the revertant colonies grow\n on histidine-free medium and are counted. The test is performed with and\n without metabolic activation (rat liver S9 fraction) to detect both\n direct mutagens and promutagens that require metabolic activation to\n express their mutagenicity.<\/div>\n <\/div>\n
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\n Why the Ames Test matters<\/div>\n
\n Since cancer is frequently linked to DNA damage, the Ames Test also serves\n as a rapid surrogate assay for carcinogenic potential. Standard carcinogenicity\n tests in rodents take 2\u20133 years and cost hundreds of thousands of dollars.\n The Ames Test provides a preliminary indication in days \u2014 at a fraction\n of the cost \u2014 and is a required component of many chemical registration\n dossiers (REACH, US EPA, OECD 471).<\/div>\n
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\n Regulatory references:<\/strong>\n OECD 471 \u00b7 EPA OPPTS 870.5100 \u00b7 ICH S2(R1) \u00b7\n REACH Annex VII \u00b7 EC Directive 2004\/73\/EC<\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Key ecotoxicological endpoints \u2014 what we calculate and report<\/span>\n
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\n Biogroup reports determine, calculate and interpret all standard ecotoxicological endpoints<\/div>\n <\/div>\n
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EC\u2085\u2080<\/div>
Effect Concentration 50%<\/div>
Concentration causing 50% effect (immobilisation, growth inhibition, luminescence reduction) in the exposed population. The most widely used acute ecotoxicity endpoint.<\/div><\/div>
LC\u2085\u2080<\/div>
Lethal Concentration 50%<\/div>
Concentration causing 50% mortality. Used for fish, invertebrates and earthworm acute tests. Calculated by Probit or logistic regression.<\/div><\/div>
IC\u2085\u2080<\/div>
Inhibitory Concentration 50%<\/div>
Concentration causing 50% inhibition of the measured response (growth, photosynthesis, bioluminescence). Used for bacteria, algae and in vitro assays.<\/div><\/div>
NOEC<\/div>
No Observed Effect Concentration<\/div>
Highest test concentration at which no statistically significant effect is observed relative to controls. Requires statistical analysis (Dunnett's or Williams' test).<\/div><\/div>
LOEC<\/div>
Lowest Observed Effect Concentration<\/div>
Lowest test concentration at which a statistically significant effect is observed. The NOEC\/LOEC pair defines the effective range.<\/div><\/div>
FD \/ TU<\/div>
Dilution Factor \/ Toxic Units<\/div>
FD = minimum dilution factor at which the sample is not toxic. TU = 100\/EC50. Direct input for effluent treatment design and discharge limit negotiation.<\/div><\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n When ecotoxicity testing is required or recommended<\/span>\n
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\u2696\ufe0f Required by regulation<\/div>\n <\/div>\n
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\n \u2022 H14 hazardous characteristic<\/strong> \u2014 Ley 24.051 \/ Decree 831\/93
\n \u2022 EIA<\/strong> for industrial projects discharging to surface water
\n \u2022 Discharge permits<\/strong> in environmentally sensitive receiving water bodies
\n \u2022 REACH chemical registration<\/strong> (Daphnia, algae, fish)
\n \u2022 Compostability certification<\/strong> \u2014 IRAM 29421:2019 \/ EN 13432
\n \u2022 Pesticide registration<\/strong> (SENASA \/ EPA ecotoxicity data)\n <\/div>\n <\/div>\n <\/div>\n
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\n
\u2705 Recommended by good practice<\/div>\n <\/div>\n
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\n \u2022 Effluent treatment validation<\/strong> \u2014 before and after treatment
\n \u2022 Remediation monitoring<\/strong> \u2014 verify cleanup goal achievement
\n \u2022 Due diligence<\/strong> \u2014 environmental liability assessment of contaminated sites
\n \u2022 Routine effluent monitoring<\/strong> \u2014 real-time quality control
\n \u2022 Product development<\/strong> \u2014 chemical and formulation safety screening
\n \u2022 Ecological risk assessment<\/strong> \u2014 contaminated sites (RBCA)\n <\/div>\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Reference methods and organisations<\/span>\n
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\n Internationally validated methods applied at Biogroup<\/div>\n <\/div>\n
\n
OECD<\/div>
Organisation for Economic Co-operation and Development<\/div>
201 \u00b7 202 \u00b7 203 \u00b7 207 \u00b7 208 \u00b7 210 \u00b7 211 \u00b7 471 \u00b7 481 \u00b7 TG 129 \u2014 the global standard for ecotoxicology<\/div><\/div>
ISO<\/div>
International Organization for Standardization<\/div>
6341 \u00b7 7346 \u00b7 8692 \u00b7 10993-5 \u00b7 11268 \u00b7 11269 \u00b7 11348 \u2014 European and international methods<\/div><\/div>
US EPA<\/div>
Environmental Protection Agency<\/div>
Method 600\/9-78-018 \u00b7 821-R-02-012 \u00b7 WET (Whole Effluent Toxicity) \u00b7 SW-846 \u00b7 OPPTS 870<\/div><\/div>
ASTM<\/div>
American Society for Testing and Materials<\/div>
Standard bioassay methods for aquatic toxicology and sediment testing<\/div><\/div>
IRAM \/ SW-846<\/div>
Argentine and hazardous waste<\/div>
IRAM standards \u00b7 EPA SW-846 hazardous waste test methods (H14 ecotoxicity characteristic)<\/div><\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Related services<\/span>\n
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\u267b\ufe0f Hazardous Waste Testing \u2192<\/div>
H14 ecotoxicity \u00b7 TCLP \u00b7 Ley 24.051<\/div><\/a>
\ud83d\udca7 Water & Wastewater \u2192<\/div>
Industrial effluent characterisation \u00b7 discharge permits<\/div><\/a>
\ud83c\udf3f Biodegradability \u2192<\/div>
OECD 301 \u00b7 ASTM D5338 \u00b7 IRAM 29421 \u00b7 phytotoxicity<\/div><\/a>
\ud83c\udfde\ufe0f Soil Monitoring \u2192<\/div>
Contaminated sites \u00b7 Table 9 \u00b7 remediation<\/div><\/a>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n
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\n Daphnia \u00b7 Microalgae \u00b7 Vibrio \u00b7 Fish \u00b7 Earthworms \u00b7 Plants \u00b7 Ames Test \u00b7 OECD \u00b7 EPA \u00b7 ISO\n <\/div>\n
\n Need ecotoxicity testing for your effluent, waste or product?<\/div>\n
\n From a single Daphnia EC50 to a full multi-trophic bioassay battery with\n the Ames Test \u2014 Biogroup delivers ecotoxicological evidence under the\n internationally validated methods accepted by Argentine and international\n regulators.\n <\/div>\n \n Request ecotoxicity testing \u2192<\/a>\n
\n \ud83d\udcde +54 341 425-6431<\/span>\n \ud83d\udcde +54 341 447-4486<\/span>\n \u2709 biogroup@biogroup.com.ar<\/span>\n \ud83d\udccd 3 de febrero 920 \u00b7 Rosario, Argentina<\/span>\n Mon\u2013Fri 08:00\u201317:00<\/span>\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

🐟 Daphnia \u00b7 Microalgae \u00b7 Vibrio \u00b7 Fish \u00b7 Plants \u00b7 Earthworms \u00b7 Ames Test \u00b7 OECD \u00b7 EPA \u00b7 ISO Ecotoxicity & Bioassays The integrated biological evidence that physicochemical analysis alone cannot provide. Ecotoxicity testing \u2014 commonly called “bioassays” \u2014 measures the actual toxic or adverse effects of samples on living organisms. Biogroup has…<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"_joinchat":[],"footnotes":""},"class_list":["post-989730","page","type-page","status-publish","hentry"],"yoast_head":"\nEcotoxicity - BioGroup<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/biogroup.com.ar\/en\/ecotoxicity\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ecotoxicity - BioGroup\" \/>\n<meta property=\"og:description\" content=\"🐟 Daphnia \u00b7 Microalgae \u00b7 Vibrio \u00b7 Fish \u00b7 Plants \u00b7 Earthworms \u00b7 Ames Test \u00b7 OECD \u00b7 EPA \u00b7 ISO Ecotoxicity & Bioassays The integrated biological evidence that physicochemical analysis alone cannot provide. 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