12.4.3 Control

. . Control • Planting trees in and around noise sources is an effective solution for noise pollution as plants are known to absorb noise and bring down sound levels. • Regular servicing and tuning of automobile engines can effectively reduce noise pollution by vehicles and machinery. • Workers should be provided with ear plugs and earmuffs at work sites that generate high noise levels. • Lubrication of machinery and regular servicing minimizes noise levels. • Regulations should be imposed to restrict the usage of loudspeakers in crowded areas and public places.