New paper Read our recently published paper, “Clinical detection and attribution of common disease in exposed populations”

Care that works pays for care that lasts.

Research shows that chemicals, dust, heat and other everyday exposures shape common diseases, and that seeing those risks can change care, improve outcomes and reduce costs.

Exposure risks change common diseases.

Chemicals, dust, smoke, heat and metals can change who develops common diseases, how those diseases present and what clinicians need to look for.

Prihartono et al., Int J Environ Res Public Health, 2022

In 354 rice farmers, 46% were hypertensive, and heat and pesticide spraying carried the risk while weight, smoking, alcohol, and diet did not. PMID 35162176

Lofuta Olenga Vuvu et al., J Am Heart Assoc, 2025

Young charcoal producers showed an arterial-stiffness and high-pulse-pressure phenotype from biomass smoke, despite being lean and physically active. PMID 40357645

Lamas et al. (American Heart Association), J Am Heart Assoc, 2023

A scientific statement naming lead, cadmium, and arsenic as cardiovascular risk factors that drive stroke and coronary disease.

North et al., J Glob Health, 2019

In biomass-exposed rural Uganda, only 2% met the smoking-keyed COPD definition, against a 30% respiratory-symptom burden the screen never routed to testing. PMID 31217961

Lofuta Olenga Vuvu et al., Physiol Rep, 2025

Charcoal producers showed double the exercise-induced airway narrowing of farmers despite identical aerobic fitness, so fitness masked the airway disease. PMID 40346027

Mălăescu et al., Life, 2025

Never-smoker COPD described as a distinct entity, overlooked because clinical suspicion anchors on a smoking history the exposed worker does not have. PMID 41598199

Fell et al., Occup Environ Med, 2025

Dust and fume exposure drove chronic obstructive airway disease independent of smoking status. PMID 40074297

Johnson, Wesseling & Newman, N Engl J Med, 2019

A landmark review reframing chronic kidney disease of unknown cause as largely occupational and environmental, and short of early screening tools. PMID 30759293

Wesseling et al., Environ Res, 2015

Salvadoran sugarcane cutters showed kidney-injury biomarkers rising across a single work shift under 93–108°F field heat. PMID 26209462

Gallo-Ruiz et al. (MANOS), BMC Nephrol, 2022

Among agricultural workers with no diabetes or hypertension, 7% already had chronic kidney disease, rising to 14% in sugarcane cutters. PMID 35794550

Howlett et al., PLOS Glob Public Health, 2023

Artisanal and small-scale miners showed silicosis in 11 to 37% despite short mining careers, with almost no surveillance in place. PMID 37733799

Fazio, Gandhi et al., JAMA Intern Med, 2023

Engineered-stone fabrication workers presented at a median age of 45, most were diagnostically delayed, and 19% died at a median age of 46. PMID 37486642

Maboso et al., Am J Ind Med, 2023

Silicosis in gold miners remains routinely mistaken for tuberculosis, a century after the difficulty of telling them apart was first described.

Alif et al., Thorax, 2025

Across two decades in the European Community Respiratory Health Survey, occupational exposures drove 18% of new adult-onset asthma. PMID 40306950

Kim, Kim & Song, Allergy Asthma Immunol Res, 2026

Work-related asthma is widely under-recognized and misfiled as ordinary adult asthma, so its cause is never recorded. PMID 42223033

Lanphear et al., Environ Health Perspect, 2005

Pooled international data showed lead lowers children’s intellectual function even below the regulatory blood-lead threshold. PMID 16002379

Eskenazi et al. (CHAMACOS), Environ Health Perspect, 2007

In farmworker children, organophosphate pesticide exposure tracked with attention deficits and lower cognitive scores. PMID 17520070

Wasserman et al., Environ Health Perspect, 2006

Manganese reaching children through drinking water lowered their intellectual function in an exposed farming community. PMID 16393669

Medicine already knows how to act on exposures.

Military, occupational and public-health systems already screen for certain exposures, monitor their effects and change care when those risks are found. Rural families rarely receive the same exposure-informed care standard.

Cholinesterase Monitoring Rule, Washington State, WAC 296-307-148

Agricultural pesticide handlers receive baseline and periodic blood testing, and a fall of more than 20% below their own baseline triggers investigation and removal from handling. Washington State Dept of Labor & Industries

Coal Workers’ Health Surveillance Program, NIOSH, since 1969

Every coal miner is offered black lung screening at no cost, on entry to the industry and periodically thereafter. Federal Coal Mine Health and Safety Act, 1969

Part 90 transfer rights, Mine Safety and Health Administration

A coal miner found to have black lung has the right to work in areas with lower dust, so the diagnosis changes the exposure. 30 CFR Part 90

Respirable crystalline silica, 29 CFR 1926.1153

Workers needing a respirator for silica 30 or more days a year receive a baseline exam, chest X-ray read to the ILO standard, spirometry and a TB test, repeated at least every three years. OSHA

Lead standards, 29 CFR 1910.1025 and 1926.62

Exposed workers receive blood lead testing at least every six months, and medical removal protection takes them out of exposure while preserving earnings. OSHA

Honoring Our PACT Act, United States, 2022

Hypertension was added to the conditions presumed to be caused by Agent Orange exposure, so a veteran’s exposure history changes how the disease is interpreted and handled. U.S. Department of Veterans Affairs

Childhood lead surveillance, CDC, Medicaid and state health departments

Children are screened for lead, and an elevated level triggers medical follow-up and investigation of the child’s environment to identify and reduce the source. CMS EPSDT benefit · CDC blood lead reference value, 3.5 µg/dL

Trusted guides help care work.

Trusted community-based guides help patients complete treatment, navigate care and reduce harmful exposures. Studies show these approaches can improve disease control and reduce avoidable hospital use.

Kangovi, Mitra, Grande, Long & Asch, Health Affairs, 2020

In a randomized trial, one community health worker team saved Medicaid $1,401,308 against $567,951 in program cost. PMID 32011942

Basu et al., NEJM Catalyst, 2024

Among 64,278 Medicaid patients, community-based early intervention cut avoidable hospitalizations by 48.3% and avoidable emergency visits by 20.4% against a matched control group. DOI 10.1056/CAT.24.0060

Basu et al., NEJM Catalyst, 2024

In the same population, seven of nine pre-selected quality measures improved by an average of 11.8 percentage points within the calendar year. DOI 10.1056/CAT.24.0060

Campbell, Brooks, Hosokawa, Robinson, Song & Krieger, Am J Public Health, 2015

In 373 Medicaid-enrolled children with uncontrolled asthma, guide-led exposure reduction produced 2.10 more symptom-free days per two weeks than usual care. PMID 26270287

Krieger, Takaro, Song & Weaver, Am J Public Health, 2005

Among 274 households with an asthmatic child, higher-intensity guide support improved caregiver quality of life and cut asthma-related urgent health services use. PMID 15798126

Crocker et al., Task Force on Community Preventive Services, Am J Prev Med, 2011

Across 23 studies, home-based exposure reduction cut symptom days by 21.0 a year, school days missed by 12.3 a year and acute care visits by 0.57 a year. PMID 21767736

Better care can return more than it costs.

When care prevents avoidable illness, hospital use and complications, the value it creates can exceed the cost of delivering it.

Kangovi et al., Health Affairs, 2020

Every $1 invested in the IMPaCT community health worker program returned $2.47 to an average Medicaid payer within one fiscal year. PMID 32011942

Campbell et al., Am J Public Health, 2015

$1,340.92 in healthcare savings per participant against $707.04 in program cost, a benefit-cost ratio of 1.90. PMID 26270287

Nurmagambetov et al., Am J Prev Med, 2011

Across three cost-benefit studies, home-based exposure reduction returned $5.30 to $14.00 for every dollar spent, in 2007 dollars. PMID 21767734

Reading these figures

These ratios compare healthcare savings with program costs: a return of $2.47 per $1 means $2.47 in savings for every dollar spent, not $2.47 after subtracting the original dollar. These are results from comparable programs, not beale horton outcomes.

Ten years proving care can work for rural families.

At Cocoa360, trusted community guides and local care helped rural families turn access into measurable health outcomes and lower healthcare costs.

+449%
preventive-care use
98%
care adherence
90%
hypertension control*
$192
saved per year per family

*Compared with 27% nationally. Program evaluation, not an RCT.