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The technology to recover natural gas depends on undisclosed types and amounts of toxic chemicals. A list of 944 products containing 632 chemicals used during natural gas operations was compiled. Literature searches were conducted to determine potential health effects of the 353 chemicals identified by Chemical Abstract Service (CAS) numbers. More than 75% of the chemicals could affect the skin, eyes, and other sensory organs, and the respiratory and gastrointestinal systems. Approximately 40-50% could affect the brain/nervous system, immune and cardiovascular systems, and the kidneys; 37% could affect the endocrine system; and 25% could cause cancer and mutations. These results indicate that many chemicals used...
Toxicological research became institutionalized in the United States in response to society's concern about cancer and acute mortality. Driven by risk assessment, research focused on the need for data development and the standardization of testing for regulatory and management purposes in a reactive mode. Although the research community has provided evidence for over 40 years that a number of pesticides and industrial chemicals have disruptive effects on the endocrine system, little attention was given to the evidence when determining the health hazards of synthetic chemicals because of the fixation on cancer. However, recent findings concerning the effects of a number of widespread chemicals on the reproductive...