DIAL works in various fields to minimise the environmental impact of its operations. Noise abatement is one of the key areas the airport is focusing on. The followings are the various noise mitigation steps taken by DIAL:

Ambient noise monitoring is being conducted regularly at different locations in and around the airport including the areas under the takeoff and landing funnels.
All equipment operating within the airport is maintained in good working condition to reduce ground noise in the premises.
The terminal buildings as well as all the offices within the airport boundary are acoustically treated.
DIAL is an integral part of the ‘working group on airport noise’ (WGAN) formed by Director General of Civil Aviation (DGCA). This group is exploring various possibilities and developing feasible measures to reduce excessive noise in the vicinity of IGI Airport.
DIAL is also in the process of establishing an 'aircraft noise monitoring systems'(ANMS) in order to develop a database of aircraft noise. Monitoring of noise levels and tracking the aircraft will help in formulating measures to mitigation of aircraft generated noise.

Aircraft noise management is an important challenge for airport operators worldwide. IGI Airport is committed to managing noise levels in and around the airport.

To lessen the impact on our surrounding communities we have in place operational and consultative strategies to protect and enhance our environment.

To lodge a complaint regarding Aircraft noise in your area please call us at 011-47198600

Air quality management is one of the major focus areas in IGI Airport; DIAL has taken various initiatives on Air quality management after takeover of IGIA from Airports Authority of India (AAI).

To manage the air quality at IGIA, DIAL monitors air quality inside & outside the airport on regular basis. Air quality monitoring is done for parameters such as Suspended Particulate Matter(SPM), Sulphur Dioxide (SO2), Oxides of Nitrogen (NOx), Hydrocarbon (HC) and Carbon Monoxide (CO).

DIAL has initiated various measures on emission reduction which include working on emissions from Aircrafts, Vehicles, Auxiliary Power Unit (APU) and Ground Power Unit (GPU). To reduce the APU and GPU utilization, DIAL has installed Fixed Ground Power Unit (FGPU) facility in its New Terminal T3.

DIAL also initiated Green House Gas inventory program to establish the emission data for mobile and ground vehicles. It also facilitates employees to reduce their carbon foot print by carpool network initiative.

DIAL new integrated terminal 3 which is highly energy efficient building with features like

Natural day lighting
Use of construction materials & interior finishes with high recycled content
Use of environmental friendly vehicles
  Other Air quality improvement initiatives taken by DIAL are:
Establishment of a CNG filling station inside the airport
Usage of battery operated vehicles for transferring passengers from one terminal to another
Use of dust screens and water sprinklers at construction area to prevent gusting dust
Encouraging organization to save energy and conserve natural resources

Water management is one of the major focus areas in IGIA; DIAL has taken various initiatives on water & wastewater management after takeover of IGIA from Airports Authority of India (AAI).

Currently IGIA manages its water requirement from ground water source & municipal supply. Though the IGIA has saline ground water sources it serves the well treated drinking water to passengers after treating by reverse osmosis (RO) membrane plant and the quality of water is being monitoring as per IS 10500 standard requirement.

To manage the ground water resource at IGIA, DIAL has already installed rainwater harvesting structures spread across the airport areas. The effectiveness of these structures is measured for their infiltration ability.

Wastewater reutilization is one of the key activities of DIAL water management. Presently DIAL has sewage treatment plant (STP) operating round the clock. To manage the IGIA up-graduation requirements, DIAL has constructed modern STP with advanced tertiary treatment viz. ultra filtration and RO technique and latest water treatment equipment to achieve zero water discharge plan. The entire treated water is being utilized for air-condition cooling i.e. Heating, Ventilating, and Air Conditioning (HVAC), toilet flushing, horticulture and construction activities.

At the New T3 terminal DIAL has incorporated:

DIAL works exclusively with waste management companies which employ the highest environmental standards to handle different kind of waste streams. DIAL regularly checks to ensure that these standards are maintained. Audits & Inspections are carried out at the waste facilities for this purpose. All waste is appropriately recycled if it makes ecological & economical sense. Despite these efforts to recycle waste wherever possible, there are unavoidable instances where waste cannot be recycled and must be disposed off in an environmentally- friendly way, according to government regulations.

At the New T3 terminal DIAL has incorporated:

Capability for segregation at source by passengers, concessionaires and all service providers
Twin bin system for waste management
Maximization of recycling

DIAL’s Environment management system is certified as per ISO 14001: 2004 certification DIAL has placed number of key environmental objectives to guide its approach to environmental management which includes:
Maintain EMS ISO 14001 certification.
Regular review of environmental performance indicators for its continual improvement.
Identification and management of the environmental impacts likely to be associated with activities on airport.
Continue to employ strategies aimed at progressively improving natural resource utilization viz. efficient use of energy and water resources.
Develop adaptive methods to improve communication and dissemination of issues relating to environmental management

Using Municipal Waste to Generate Electricity
One of the DIAL’s major holding companies, GMR-Energy is setting up a municipal solid waste processing complex to generate electricity from household garbage in a joint venture with Selco International near landfill site, Gazipur. The plant will utilize about 1,300 tonnes of over 7,600 tonnes of solid waste produced by Delhi every day. About 8-10 Mega Watt (MW) electricity would be generated from this plant using refused derived fuel technology. The electricity generated at this plant will definitely paved the way for all future endeavors of solid waste management and shall be sent through grid for usage in the Airport.

LEEDS Green Building Project DIAL has taken initiative for the certification of new integrated passenger Terminal Building –T3 under LEED (Leadership in Energy and Environmental Design) Green Building Rating System. The Green Building Rating System is the practice of increasing the efficiency with which building uses resources, energy, water and materials – while reducing building impacts on human health and the environment during the building’s life cycle through better sitting, design, construction, operation and maintenance. DIAL’s primary focus has been upon promoting energy efficiency to improve environmental quality and implement the green building principles.

DIAL has undertaken a range of biodiversity management actions to protect important vegetation cover and habitats within the airport boundary. DIAL team with the help of Wildlife SOS, an NGO in Delhi has rehabilitated captured animals in various Wildlife sanctuaries located in & around Delhi. Captured jackals were put under quarantine and later returned to the wildlife sanctuary with intimation to the wildlife inspector. The blue bulls (known as nilgai, and actually the largest Asiatic antelope) have been relocated from the airport to the Asola Bhatti Wildlife Sanctuary in 2007.

DIAL has carried out proper landscaping and extensive tree plantation along with the construction activities at airport. More than eighteen thousand trees have been planted around the water bodies of Delhi and Airport boundaries.

DIAL has initiated various activities on emission reduction which includes Aircraft, Vehicle, Auxiliary Power Unit (APU) and Ground Power Unit (GPU) emission reduction. DIAL also facilitates Compressed Natural Gas (CNG) fueling station for vehicle operating in IGI Airport. To reduce the APU and GPU utilization DIAL have installed Fixed Electrical Ground Power (FEGP) unit facility in its New Terminal.

DIAL also initiated Green House Gas inventory program to establish the emission data for mobile and ground vehicle. It also facilitates employees to reduce their carbon foot print by Carpool network initiative.

DIAL new integrated terminal 3 which is highly energy efficient building with features like -
Natural day lighting
Use of construction materials & interior finishes with high recycled content
Use of environmental friendly vehicles

Other Climate Change mitigation initiatives taken by DIAL

Encouraging organization to save energy and conserve natural resources
Use of battery operated vehicles for transferring passengers from one terminal to another and baggage transport
Capitalize on reuse and recycling

DIAL is recognized consistently for quality service. The prestigious awards we have received are a testament to our commitment to environmental excellence.

Terminal 3 Gold Rated for LEED from IGBC: Leadership in Energy and Environmental Design (LEED) India rating system is licensed by US-GBC to the Indian Green Building Council (IGBC) to encourage and facilitate the development of more sustainable buildings. Terminal 3 project was evaluated according to this system in the following categories;

• Sustainable sites
• Water efficiency
• Energy & Atmosphere
• Materials & Resources
• Indoor Environmental Quality
• Innovation & Design

Terminal 3 achieved GOLD category from IGBC in February, 2011.

Greentech Gold Award for Environmental Excellence in Infrastructure Sector for the year 2010.

Greentech Gold Award for Environmental Excellence in Aviation Sector(2008 &2009)

DIAL has won Greentech Gold award for three years in succession.