I believe there may be a slight misunderstanding in your question. "Oil and gas fields" are not a medical term, but rather a term used in the geology and petroleum industry to describe areas with significant deposits of oil and natural gas. These are typically underground or underwater formations where hydrocarbons accumulate due to geological processes over millions of years.

However, I can provide you with some related medical terms that pertain to potential health impacts associated with the exploration, extraction, and use of oil and gas fields:

1. Occupational exposure: Refers to the health risks faced by workers in the oil and gas industry, who may be exposed to hazardous substances, noise, vibrations, and ergonomic stressors that can lead to various health issues such as respiratory problems, hearing loss, musculoskeletal disorders, and chemical exposures.
2. Air pollution: The release of pollutants from oil and gas operations, including volatile organic compounds (VOCs), particulate matter, nitrogen oxides, and sulfur dioxide, can contribute to poor air quality in surrounding communities, leading to respiratory issues, cardiovascular diseases, and other health problems.
3. Water contamination: Leaks, spills, or improper disposal of wastewater from oil and gas operations can lead to the contamination of groundwater and surface water resources, potentially causing adverse health effects in nearby populations, such as reproductive issues, neurological disorders, and gastrointestinal problems.
4. Noise pollution: Drilling, hydraulic fracturing (fracking), and other oil and gas operations can generate high levels of noise that may negatively impact the mental and physical health of workers and nearby residents, leading to sleep disturbances, stress, and cardiovascular issues.
5. Climate change: The combustion of fossil fuels from oil and gas fields contributes significantly to greenhouse gas emissions, driving climate change and associated health impacts such as heat-related illnesses, allergies, infectious diseases, and mental health disorders.