| Topics | Sub-Topics |
| Air pollution | General |
| Particulate matter | |
| Oxides of nitrogen | |
| Ozone | |
| Traffic-related | |
| Wildfires | |
| Particle components | |
| Mixtures | |
| Short-term exposure | |
| Long-term exposure | |
| Other (to be specified with keywords in the keywords section) | |
| Built environment | General |
| Green space | |
| Blue space | |
| Walkability | |
| Noise | |
| Light pollution | |
| Other (to be specified with keywords in the keywords section) | |
| Chemical exposures | General |
| Mixtures | |
| Endocrine disrupting chemicals | |
| Pesticides | |
| PFAS | |
| Heavy metals | |
| Phthalates | |
| Phenols | |
| Fluoride | |
| Solvents | |
| Other (to be specified with keywords in the keywords section) | |
| Climate | General |
| Temperature | |
| Temperature extremes and variability | |
| Natural disasters | |
| Health co-benefits | |
| Other (to be specified with keywords in the keywords section) | |
| Exposome | General |
| Internal exposome | |
| External exposome | |
| Other (to be specified with keywords in the keywords section) | |
| Exposures | Socio-economic factors (non-chemical stressors) |
| Environmental disparities | |
| Food/nutrition | |
| Microplastics | |
| Ionizing radiation | |
| Occupational exposures | |
| Pharmaceuticals | |
| Hazardous waste | |
| Microbes/Microbiome | |
| Water quality | |
| Multi-pollutant/Multi-media | |
| Other (to be specified with keywords in the keywords section) | |
| Respiratory and allergic outcomes | Asthma |
| Allergies | |
| Respiratory outcomes | |
| Other (to be specified with keywords in the keywords section) | |
| Birth and pregnancy outcomes | Birth outcomes |
| Pregnancy outcomes | |
| Other (to be specified with keywords in the keywords section) | |
| Reproductive outcomes | General |
| Female reproductive outcomes | |
| Male reproductive outcomes | |
| Other (to be specified with keywords in the keywords section) | |
| Neurologic and mental health outcomes | Neurodevelopmental outcomes |
| Neurodegenerative outcomes | |
| Mental health outcomes | |
| Other (to be specified with keywords in the keywords section) | |
| Cancer and cancer-precursors | Incidence |
| Survival | |
| Other (to be specified with keywords in the keywords section) | |
| Outcomes | Cardiovascular diseases |
| Children's environmental health | |
| Infectious diseases | |
| Mortality | |
| Microbiome | |
| Obesity and metabolic disorders | |
| Other (to be specified with keywords in the keywords section) | |
| One health | Bacteriology |
| Co-infections and co-morbidities | |
| COVID-19 | |
| Discovery | |
| Disease spatial surveillance | |
| Ecosystem health | |
| Parasitology | |
| Public health | |
| Tropical health | |
| Vectors and vector-borne diseases | |
| Virology | |
| Other | |
| Planetary health | Agricultural productivity |
| Biodiversity | |
| Food and nutrition | |
| Health inequalities | |
| Sustainable fishing | |
| Waste management | |
| Water scarcity | |
| Other | |
| Exposure assessment methods | Exposure assessment-general |
| Exposure assessment-air pollution | |
| Exposure assessment-biomarkers of exposure | |
| Risk assessment | |
| Spatial statistics | |
| Mixtures analysis | |
| Other (to be specified with keywords in the keywords section) | |
| Omics technologies | Epigenomics |
| Metabolomics | |
| Proteomics | |
| The exposome | |
| The microbiome | |
| Other (to be specified with keywords in the keywords section) | |
| Policy | Policy research |
| Research translation to affect policy and practice | |
| Other (to be specified with keywords in the keywords section) | |
| Methods | Environmental epidemiology |
| Occupational epidemiology | |
| Molecular epidemiology | |
| Toxicology | |
| Causal inference | |
| Community outreach | |
| Environmental justice | |
| Science communication | |
| Big data | |
| Ethics | |
| Methodological study design | |
| International collaboration | |
| Modeling | |
| Other (to be specified with keywords in the keywords section) | |
| Other | Other (to be specified with keywords in the keywords section) |
| Keywords Reference List | ||
| Air pollution | Health co-benefits | Outcomes |
| Allergies | Heavy metals | Oxides of nitrogen |
| Asthma | Incidence | Ozone |
| Big data | Infectious diseases | Particle components |
| Biomarkers of exposure | Internal exposome | Particulate matter |
| Birth outcomes | International collaboration | Pesticides |
| Blue space | Ionizing radiation | PFAS |
| Built environment | Light pollution | Pharmaceuticals |
| Cancer and cancer precursors | Long-term exposure | Phenols |
| Cardiovascular diseases | Male | Phthalates |
| Causal inference | Mental health outcomes | Policy |
| Chemical exposures | Metabolomics | Policy and practice |
| Children's environmental health | Methodological study design | Pregnancy outcomes |
| Climate | Microbes | Proteomics |
| Community-engaged research | Microbes/Microbiome | Reproductive Outcomes |
| Community outreach | Microbiome | Respiratory outcomes |
| COVID-19 | Microplastics | Risk assessment |
| Endocrine disrupting chemicals | Mixtures | Science communication |
| Environmental disparities | Mixtures analysis | Short-term exposure |
| Environmental epidemiology | Modeling | Socio-economic factors |
| Environmental justice | Molecular epidemiology | Solvents |
| Epidemiology | Mortality | Spatial statistics |
| Epigenomics | Multi-media | Survival |
| Ethics | Multi-pollutant | Temperature |
| Exposome | Multi-pollutant/Multi-media | Temperature extremes |
| Exposure assessment | Natural disasters | Temperature variability |
| Exposures | Neurodegenerative outcomes | The exposome |
| External exposome | Neurodevelopmental outcomes | The microbiome |
| Female | Noise | Toxicology |
| Fluoride | Non-chemical stressors | Traffic-related |
| Food/nutrition | Obesity and metabolic disorders | Walkability |
| Foodborne diseases | Occupational epidemiology | Waterborne diseases |
| Green space | Occupational exposures | Water quality |
| Hazardous waste | Omics technologies | Wildfires |