Rock concert

Bill Graham is widely credited with setting the format and standards for modern rock concerts.

The largest rock concert in history was the one Rod Stewart gave on New Year's Eve 1993-94 on Copacabana Beach in Rio de Janeiro.

It was estimated that 4.2 million people attended it, although this figure is believed to include those who turned up solely for the fireworks display at midnight.

Regardless of exactly where the generators are placed, these units emit carcinogenic ultrafine particulates (UFPs) and other pollutants directly into the ambient air.

Unless specific precautions are taken (such as placing the gensets very far away and using extra-long connection cables or installing extremely long power-operated exhaust ducts, and/or using wet scrubbers, while also taking into account ambient air currents, winds, and other local factors), the genset emissions are likely to become mixed into the air that is inhaled by concert attendees as well as the musicians and staff and other individuals in the area.