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Current location  NTT HOME > NTT Group CSR > NTT Group CSR Report 2006 > Communication between people and the global environment > Promoting environmental management
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Promoting ISO 14001 environmental management

The NTT Group makes every effort to implement effective environmental management capable of responding to the specific circumstances that exist at each and every facility operated by our group companies. Between 1997 and fiscal 2005, 133 of our sites were certified as compliant with ISO 14001 environmental management standards.
As of fiscal 2004, 50.2% of all employees at NTT Group companies worked at ISO 14001-compliant sites, and that figure increased to 51.6% by fiscal 2005. We are committed to the further pursuit of ISO 14001 certification and other measures to promote effective environmental management.

Environmental risk management

As a responsible corporate citizen, the NTT Group undertakes various measures to minimize any potential threat to society posed by risks such as environmental accidents and pollution.
Activities performed periodically and systematically according to established guidelines and checklists as a part of this commitment include soil and water surveys, chemical management, and removal and storage of items using PCBs. We are also continuing our research into the effects of electromagnetic waves generated by mobile phones on the human body.
Despite these efforts, in fiscal 2005 hazardous substances were detected at certain NTT premises at a level that exceeds the maximum level permissible under law. In all instances, appropriate measures were taken under the guidance of local authorities to achieve compliance with the law and ensure that there was no impact on surrounding areas.
The NTT Group will continue in its efforts to prevent environmental accidents and pollution through practicing effective environmental risk management.

Initiatives

Asbestos survey

The NTT Group has been promoting the removal of asbestos -especially sprayed asbestos -at NTT facilities since 1985. Following the enactment in 2005 of the Ordinance on Prevention of Hazards Due to Asbestos, we carried out a new survey that revealed the existence of materials containing asbestos in some NTT facilities, and we are currently taking appropriate measures as stipulated by law.

Ensuring the safety of mobile phone radio waves

NTT DoCoMo's mobile phone base stations are licensed as radio stations by the Ministry of Internal Affairs and Communications when they are established, and after the start of operations, radio wave quality is monitored through equipment maintenance and other measures to ensure that technical requirements are met. These base stations are inspected every five years for licenses renewal.
Mobile phone handsets too are sold after being verified for compliance with technical standards designated by the authorities, and thus meet the permissible localized SAR value for mobile phones according to government regulations regarding radio wave radiation protection. NTT DoCoMo also conducts research on the effect of radio waves on living organisms, and findings so far show that radio waves from handsets and base stations have no adverse effects on human cells. NTT DoCoMo will strive to maintain a communications environment that its customers can use with confidence through continuing these research activities.

Maintaining equipmentNTT DoCoMo handsets comply with government technical standards.
(left) Maintaining equipment
(right) NTT DoCoMo handsets comply with government technical standards.
Terminology
Localized SAR: SAR is an acronym for Specific Absorption Rate. Localized SAR is a measure of the average amount of radio frequency energy absorbed by a random 10g of human body tissues during six minutes of exposure to a mobile phone's electromagnetic field.
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