{"query_echo":{"q":"","filters":{"analysis_type":["risk assessment review"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'risk assessment review' for facet 'analysis_type' is not in the controlled vocabulary."}]},"total":{"value":6,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=risk+assessment+review","stability":"beta","ai_marking":{"digital_source_type":{"uri":"http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia","name":"Created using Generative AI"},"notice":"Summary and key insights are generated using artificial intelligence."},"results":[{"id":"earjust-002442","url":"https://climateinsightsdirectory.org/document/earjust-002442","title":"Comments concerning the Draft Sewage Sludge Risk Assessment for Perfluorooctanoic Acid (PFOA) and Perfluorooctane Sulfonic Acid (PFOS) (Docket ID No. EPA-HQ-OW-2024-0504)","publisher":{"name":"Earthjustice","organization":"earthjustice"},"document_type":"statement","language":"en","date_published":"2025-08-14","source_url":"https://earthjustice.org/wp-content/uploads/2025/08/2025-08-14-nrdc_ej-comments-on-pfas-sludge-risk-assessment-final.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"A coalition of 42 organizations, including Earthjustice and the NRDC, submitted comments on the EPA's Draft Sewage Sludge Risk Assessment for PFOA and PFOS. The coalition argues that the EPA's assessment confirms that these 'forever chemicals' in sewage sludge pose unacceptable risks to human health and the environment, particularly through land application on farms. They claim the EPA's risk calculations are underestimates because they use low-end concentration models and ignore combined exposure effects. The document calls for the prompt finalization of the assessment, the establishment of numerical limitations and management practices under the Clean Water Act, and the expansion of future risk assessments to include other PFAS, synthetic organic fluorine compounds, and microplastics. Additionally, they advocate for stricter pretreatment standards for industrial dischargers to prevent PFAS from entering publicly-owned treatment works.","ai_generated":true,"unit":"earjust-002442#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Land application of sewage sludge containing PFOA or PFOS at just 1 part per billion (ppb) can exceed EPA's acceptable thresholds for cancer and non-cancer risks by several orders of magnitude, with children consuming contaminated milk potentially facing a lifetime cancer risk thousands of times above acceptable levels.","ai_generated":true,"unit":"earjust-002442#insight-1","date_modified":"2026-10-23"},{"text":"The coalition asserts that the EPA's risk calculations are underestimates because they model risks based on 1 ppb, which is at the low end of measured U.S. concentrations; real-world testing shows PFOA and PFOS are commonly detected at 10 to 100s of ppb.","ai_generated":true,"unit":"earjust-002442#insight-2","date_modified":"2026-10-23"},{"text":"PFAS contamination from sewage sludge has caused severe economic and agricultural damage in several states: in Michigan, a cattle farm was shut down and permanently prohibited from agricultural use; in Texas, ranchers stopped sending cattle to market after finding high PFAS levels in a stillborn calf; and in Maine, at least 82 farms have suffered soil, well, or livestock contamination.","ai_generated":true,"unit":"earjust-002442#insight-3","date_modified":"2026-10-23"},{"text":"The document argues that the EPA must expand its scope to assess other pollutants in sewage sludge, including short-chain PFAS, synthetic organic fluorine compounds, and microplastics, noting that microplastics can adsorb other pollutants like heavy metals and PFAS.","ai_generated":true,"unit":"earjust-002442#insight-4","date_modified":"2026-10-23"},{"text":"The coalition calls for the EPA to establish industry-specific, technology-based pretreatment standards for industrial facilities discharging PFAS to publicly-owned treatment works (POTWs), as traditional wastewater treatment does not remove or destroy PFOA or PFOS.","ai_generated":true,"unit":"earjust-002442#insight-5","date_modified":"2026-10-23"}],"climate_tags":["per- and polyfluoroalkyl substances","water pollution"],"geography_discussed":["Michigan","Texas","Maine","Colorado"],"frame_perspective":[],"analysis_type":["policy critique","risk assessment review"]},{"id":"capeca-000292","url":"https://climateinsightsdirectory.org/document/capeca-000292","title":"Proposed Re-evaluation Decision PRVD2019-05, Chlorpyrifos and Its Associated End-use Products: Updated Environmental Risk Assessment","publisher":{"name":"Canadian Association of Physicians for the Environment","organization":"canadian-association-of-physicians-for-the-environment"},"document_type":"statement","language":"en","date_published":"2019-07-31","source_url":"https://cape.ca/wp-content/uploads/2019/08/NGO-comments-on-proposed-PMRA-ddecision-on-chlorpyrifos-July-2019.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The document argues for a total ban on chlorpyrifos in Canada, asserting that the PMRA's proposed re-evaluation decision does not go far enough. The authors claim that risks to pollinators, birds, mammals, and aquatic life are unacceptable and that current risk assessments underestimate exposure due to a lack of surface water monitoring data. They specifically challenge the safety of continued use in mosquito control and greenhouses, citing evidence of biodiversity in temporary pools and the inefficiency of label restrictions to prevent runoff.","ai_generated":true,"unit":"capeca-000292#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The signatory organizations support the proposed cancellation of most chlorpyrifos uses because risks to fish, aquatic invertebrates, mammals, birds, and pollinators are deemed unacceptable.","ai_generated":true,"unit":"capeca-000292#insight-1","date_modified":"2026-10-23"},{"text":"The authors argue that PMRA risk assessments frequently underestimate environmental exposure because of a persistent lack of robust surface water monitoring data, a gap that existed for over a decade in the original 2003 assessment.","ai_generated":true,"unit":"capeca-000292#insight-2","date_modified":"2026-10-23"},{"text":"The document contends that the PMRA's pollinator risk assessment is flawed because it ignores exposure from spray drift and soil/soil-water pathways, noting that 11 to 74 per cent of spray can drift one metre downwind.","ai_generated":true,"unit":"capeca-000292#insight-3","date_modified":"2026-10-23"},{"text":"The authors challenge the PMRA's assumption that mosquito larvae control in temporary standing pools is low-risk, citing research from North Carolina, the UK, Australia, and Argentina that shows high insect diversity in such pools.","ai_generated":true,"unit":"capeca-000292#insight-4","date_modified":"2026-10-23"},{"text":"The organizations question the effectiveness of proposed label restrictions to prevent greenhouse effluent from entering water bodies, citing similar failures with neonicotinoid pesticides.","ai_generated":true,"unit":"capeca-000292#insight-5","date_modified":"2026-10-23"}],"climate_tags":["pollinator","biodiversity","environmental risk"],"geography_discussed":["United States","European Union","United Kingdom","California","Hawaii","Australia","Argentina"],"frame_perspective":[],"analysis_type":["policy critique","risk assessment review"]},{"id":"capeca-000280","url":"https://climateinsightsdirectory.org/document/capeca-000280","title":"Comments on the pollinator re-evaluation of imidacloprid","publisher":{"name":"Canadian Association of Physicians for the Environment","organization":"canadian-association-of-physicians-for-the-environment"},"document_type":"statement","language":"en","date_published":"2018-08-29","source_url":"https://cape.ca/wp-content/uploads/2018/08/Imidacloprid-pollinator-re-evaluation-comments-FINAL.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The document argues that the PMRA's proposed phase-out of imidacloprid is too slow and narrow in scope, failing to account for the risks to wild pollinators beyond honey bees and bumblebees. It criticizes the reliance on label statements for risk mitigation, citing inadequate enforcement capacity in Canada. The authors highlight risks from environmental contamination, such as residues in non-target wildflowers and dust from treated seeds, and argue that the economic value of neonicotinoid seed treatments is overrated. They recommend a full ban on all outdoor uses, aligned with European Union regulations, and a shift toward Integrated Pest Management (IPM).","ai_generated":true,"unit":"capeca-000280#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The authors argue that the PMRA's proposed phase-out timeline of three to five years is unjustifiably long and will prolong environmental contamination, urging Canada to match the EU timeline and end neonicotinoid use by the end of 2018.","ai_generated":true,"unit":"capeca-000280#insight-1","date_modified":"2026-10-23"},{"text":"The risk assessment (PRVD2018-12) is criticized for being too narrow, as it primarily uses honey bee data as a surrogate and fails to adequately assess risks to other wild pollinators, such as solitary bees, flies, butterflies, and beetles.","ai_generated":true,"unit":"capeca-000280#insight-2","date_modified":"2026-10-23"},{"text":"The document asserts that risk mitigation based on label statements is ineffective due to a lack of data on efficacy and the PMRA's inadequate inspection and enforcement capacity at the farm level across Canada.","ai_generated":true,"unit":"capeca-000280#insight-3","date_modified":"2026-10-23"},{"text":"There is significant concern regarding environmental contamination beyond treated fields, specifically that imidacloprid residues in non-target wildflowers and dust from treated seeds pose risks that the PMRA has inappropriately dismissed.","ai_generated":true,"unit":"capeca-000280#insight-4","date_modified":"2026-10-23"},{"text":"The authors claim the PMRA fails to evaluate the total cumulative exposure risk to pollinators from multiple applications of imidacloprid and the additive effects of using multiple different neonicotinoids concurrently.","ai_generated":true,"unit":"capeca-000280#insight-5","date_modified":"2026-10-23"},{"text":"The document argues that the economic value of neonicotinoid seed treatments is overrated, citing evidence that they often do not increase crop yields and that cost-effective alternatives like Integrated Pest Management (IPM) and insurance models exist.","ai_generated":true,"unit":"capeca-000280#insight-6","date_modified":"2026-10-23"}],"climate_tags":["pollinator","biodiversity","ecosystem service","food security"],"geography_discussed":["European Union","Ontario","Quebec","Italy","United States"],"frame_perspective":[],"analysis_type":["policy critique","risk assessment review"]},{"id":"capeca-000061","url":"https://climateinsightsdirectory.org/document/capeca-000061","title":"Canada Gazette, Part I, September 9, 2017 — Draft Screening Assessment re Hydrogen Sulfide (H2S), Sodium Sulfide (Na(SH)) and Sodium Sulfide (Na2S)","publisher":{"name":"Canadian Association of Physicians for the Environment","organization":"canadian-association-of-physicians-for-the-environment"},"document_type":"statement","language":"en","date_published":"2017-11-08","source_url":"https://cape.ca/wp-content/uploads/2018/04/1.Re-Hydrogen-sulphide-Nov.-8-2017.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The document outlines opposition to a Draft Screening Assessment regarding hydrogen sulfide (H2S), sodium bisulfide (Na(SH)), and sodium sulfide (Na2S). The authors argue that H2S poses significant risks to human health, particularly for communities near oil and gas operations, and that the government's assessment fails to apply a precautionary approach or account for olfactory nuisance as an adverse effect.","ai_generated":true,"unit":"capeca-000061#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The authors contend that the Draft Screening Assessment is flawed because it ignores the health risks H2S releases pose to Canadians living or working near oil and gas infrastructure or those impacted by geological fracturing.","ai_generated":true,"unit":"capeca-000061#insight-1","date_modified":"2026-10-23"},{"text":"Evidence is provided of severe H2S leaks in Saskatchewan, including reports of concentrations reaching 150,000 ppm, which is 150 times the level that causes instant death.","ai_generated":true,"unit":"capeca-000061#insight-2","date_modified":"2026-10-23"},{"text":"The document argues that olfactory nuisance should be considered an adverse health effect, citing legal precedents in Ontario and British Columbia where odours caused nausea, headaches, and stress.","ai_generated":true,"unit":"capeca-000061#insight-3","date_modified":"2026-10-23"},{"text":"The authors criticize the Draft Screening Assessment for using a neurological no observable adverse effect concentration (NOAEC) of 30 ppm based on rat studies, whereas the California OEHHA uses a much lower acute reference exposure level of 0.03 ppm.","ai_generated":true,"unit":"capeca-000061#insight-4","date_modified":"2026-10-23"},{"text":"The authors claim the government failed to apply uncertainty factors to the chronic inhalation NOAEC of 10 ppm, which they argue would result in a reference exposure level well within measured ambient air concentrations in Canada.","ai_generated":true,"unit":"capeca-000061#insight-5","date_modified":"2026-10-23"},{"text":"The document asserts that the Margins of Exposure (MOEs) for acute respiratory effects (60 to 200) and chronic inhalation (320 to 10,000) fall below the 1,000 threshold that Health Canada policy generally requires for 'no further action'.","ai_generated":true,"unit":"capeca-000061#insight-6","date_modified":"2026-10-23"}],"climate_tags":["air quality","toxicant","environmental health"],"geography_discussed":["Saskatchewan","British Columbia","Ontario","Alberta"],"frame_perspective":[],"analysis_type":["policy critique","risk assessment review"]},{"id":"capeca-000065","url":"https://climateinsightsdirectory.org/document/capeca-000065","title":"Special Review of Atrazine: Proposed Decision for Consultation (REV2015-11)","publisher":{"name":"Canadian Association of Physicians for the Environment","organization":"canadian-association-of-physicians-for-the-environment"},"document_type":"statement","language":"en","date_published":"2016-02-12","source_url":"https://cape.ca/wp-content/uploads/2018/03/2.CAPE’s-Letter-to-PMRA-re-Special-Review-of-Atrazine-February-2016.pdf#new_tab","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The document critiques the PMRA's special review of atrazine, claiming it ignores synergistic effects of pesticide mixtures, fails to assess surface water contamination, and uses less protective drinking water standards than necessary. It cites evidence of atrazine's presence in Canadian groundwater and surface water, as well as its links to endocrine disruption in wildlife and various cancers and developmental issues in humans.","ai_generated":true,"unit":"capeca-000065#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The authors argue that the PMRA's special review is flawed because it does not examine individual end-use pest control products, ignoring the potential cumulative effects and synergies of active ingredients and coformulants.","ai_generated":true,"unit":"capeca-000065#insight-1","date_modified":"2026-10-23"},{"text":"Atrazine has been detected in 11% of Canadian groundwater samples (119 out of 1067), with a maximum concentration of 2.32 µg/L, which exceeds the 0.1 µg/L threshold used by the European Union to ban the substance.","ai_generated":true,"unit":"capeca-000065#insight-2","date_modified":"2026-10-23"},{"text":"The PMRA's use of a 'Drinking Water Level of Comparison' (1300.5 µg/L for acute and 41.9 µg/L for chronic effects) is criticized as being less protective than the Health Canada drinking water guideline of 5 µg/L.","ai_generated":true,"unit":"capeca-000065#insight-3","date_modified":"2026-10-23"},{"text":"The review is criticized for failing to assess surface water contamination, despite data showing atrazine in Ontario and Quebec exceeds the Canadian Water Quality Guideline for the protection of aquatic life (1.8 µg/L).","ai_generated":true,"unit":"capeca-000065#insight-4","date_modified":"2026-10-23"},{"text":"In Quebec, monitoring by the MDDELCC found atrazine in an average of 97% of samples from rivers in rural soy and corn areas, with maximum concentrations reaching 13 µg/l in 2014.","ai_generated":true,"unit":"capeca-000065#insight-5","date_modified":"2026-10-23"},{"text":"Atrazine is linked to endocrine disruption in vertebrates, specifically affecting aromatase and causing demasculinization and partial or complete feminization in fish, amphibians, and reptiles.","ai_generated":true,"unit":"capeca-000065#insight-6","date_modified":"2026-10-23"},{"text":"The document cites various human health risks associated with atrazine exposure, including fetal growth restriction, increased odds of preterm birth, and correlations with stomach, breast, and various cancers in specific populations.","ai_generated":true,"unit":"capeca-000065#insight-7","date_modified":"2026-10-23"}],"climate_tags":["pesticide","environmental regulation"],"geography_discussed":["Quebec","Ontario","British Columbia","Saskatchewan","Manitoba","United States","European Union","France"],"frame_perspective":[],"analysis_type":["policy critique","risk assessment review"]},{"id":"earjust-001661","url":"https://climateinsightsdirectory.org/document/earjust-001661","title":"Coming Clean: What the EPA Knows About the Dangers of Coal Ash","publisher":{"name":"Earthjustice","organization":"earthjustice"},"document_type":"report","language":"en","date_published":"2009-05","source_url":"https://earthjustice.org/sites/default/files/library/reports/final-coming-clean-ejeip-report-20090507.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The report analyzes the EPA's 2007 risk assessment, finding that unlined coal ash ponds and landfills pose severe cancer and non-cancer risks to humans and aquatic ecosystems. It specifically highlights that residents near unlined ponds mixing ash and coal refuse face a 1 in 50 cancer risk from arsenic, 2,000 times the EPA's regulatory goal. The document also notes that boron levels in surface waters can reach 2,000 times safe thresholds for aquatic life. It argues that the EPA underestimated these risks by ignoring direct surface water releases and inhalation pathways, and calls for the phase-out of ash ponds within five years and the mandatory use of composite liners for landfills.","ai_generated":true,"unit":"earjust-001661#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Unlined surface impoundments (wet ponds) that mix coal combustion waste with coal refuse present the highest human health risks, with a predicted lifetime cancer risk of 1 in 50 for nearby residents due to arsenic leaching into drinking water. This risk is 2,000 times the EPA's regulatory goal of one additional cancer per 100,000 people.","ai_generated":true,"unit":"earjust-001661#insight-1","date_modified":"2026-10-23"},{"text":"Unlined coal ash ponds cause non-cancer health risks by exposing residents to toxic metals above safe levels. Lead exposures can reach 9 times the federal maximum contaminant level (MCL), while cadmium and cobalt exposures can reach 9 times and 8 times their respective hazard quotients (HQ), potentially causing kidney disease, fragile bones, and heart or lung damage.","ai_generated":true,"unit":"earjust-001661#insight-2","date_modified":"2026-10-23"},{"text":"Coal ash disposal poses extreme risks to aquatic ecosystems. Boron is predicted to leak into surface waters at concentrations up to 2,000 times the safe hazard quotient for aquatic biota. Additionally, lead in surface waters can reach 20 times the HQ for river otters, and lead in sediments can reach 200 times the harmless threshold.","ai_generated":true,"unit":"earjust-001661#insight-3","date_modified":"2026-10-23"},{"text":"While landfills are generally predicted to be less risky than ponds, unlined landfills still pose a cancer risk from arsenic that is 50 times the EPA's regulatory goals. Some 'dry landfills' have already caused documented drinking water contamination, such as a site in Anne Arundel County, Maryland, and a Superfund site in northern Indiana.","ai_generated":true,"unit":"earjust-001661#insight-4","date_modified":"2026-10-23"},{"text":"The EPA's 2007 risk assessment likely underestimated actual risks because it failed to account for several critical factors: direct releases to surface water (including unpermitted discharges), inhalation pathways, the interaction of pollutants, and the likelihood of liner failure.","ai_generated":true,"unit":"earjust-001661#insight-5","date_modified":"2026-10-23"},{"text":"The use of composite liners—combining plastic membranes with clay—significantly reduces the risk of toxins leaking into groundwater. The report recommends that these liners be required for all dry landfills along with leak detection systems.","ai_generated":true,"unit":"earjust-001661#insight-6","date_modified":"2026-10-23"}],"climate_tags":["environmental risk"],"geography_discussed":["North Carolina","Tennessee","Illinois","Kentucky","Michigan","Ohio","West Virginia","Maryland","Indiana"],"frame_perspective":[],"analysis_type":["summary","policy analysis","risk assessment review"]}]}