The Waste Management & Research Center evaluated VOC emissions from leaf blowers in Chicago under three policy scenarios: no ordinances, an aggressive ban during summer months, and a moderate policy promoting low-emission models. The aggressive scenario could cut emissions by over 64%, while the moderate scenario offers smaller, decreasing reductions. Localities like Wilmette and Oak Park have already enacted similar restrictions to address emissions and noise pollution.

The study examines emissions from small, handheld two-stroke engines used in lawn equipment, highlighting their release of toxic pollutants like carbon dioxide and hydrocarbons. Engine type significantly affects emissions, while fuel blend has little impact. These engines contribute 5-10% of total US emissions, suggesting a need for greater attention in air quality and exposure studies.

This study assessed emissions from 23 handheld 2-stroke engines from 1981-2003, revealing significant CO and HC reductions in phase-2 engines due to better design and catalytic controls. Using 10% ethanol fuel further cut HC and CO emissions. However, more oil in the fuel increased PM2.5 emissions. These findings confirm air quality improvements from updated emission standards.

The "Leaf Blower Hazards" training manual from Echo, Inc. provides essential guidelines for the responsible use of leaf blowers, addressing concerns about noise, emissions, and dust pollution. It emphasizes the importance of considerate operation, adherence to local noise ordinances, and running leaf blowers at part throttle to minimize disturbances.

This study by the Kuopio Regional Institute of Occupational Health examined noise emissions from leaf blowers and other gardening equipment. Testing of nine leaf blowers revealed noise exposure levels between 93-102 dB(A), with the highest levels from 2-stroke engines. These engines emitted low-frequency tonal noise components, which penetrate walls and are perceived as particularly irritating. The study highlights the significant noise emissions from leaf blowers, contributing to public complaints and recognizing the need for improved noise control in such equipment.

The Grand Jury report outlines the health and environmental hazards of gas-powered leaf blowers in Orange County, citing toxic emissions, particulate pollution, and harmful noise levels. Exhaust from these blowers is likened to the pollution of 17 cars per hour. The report calls for local governments, school districts, and community colleges to stop using gas-powered blowers in favor of cleaner alternatives like rakes, brooms, or electric blowers. It highlights successful compliance in cities that have banned the devices, emphasizing the need to protect public health and improve quality of life.