联合国原子辐射影响问题科学委员会（辐射科委会）秘书处收集并分析了关于全球和区域两级人类受电离辐射照射水平和趋势的数据。2014年，秘书处推出了辐射科委会在线平台，这是一个电子网络数据库，配备了用于提交数据的自动导入模块。迄今，该平台整合了关于医疗、职业和公众照射的数据。
自2014年以来，辐射科委会秘书处和世界卫生组织一直在协调安排进行最新的辐射科委会医疗照射调查。在2019年之前收集了关于医学辐照水平和趋势的信息，以扩大此前辐射科委会2008年关于该专题的评价。
此外，辐射科委会职业照射调查已于2019年完成，并提供了有关全球不同工作场所辐照的信息。
最近的调查是2021年3月1日启动的辐射科委会公众照射调查，目的是支持科委会正在进行的对《辐射科委会2008 年报告》的评价和更新。
联合国大会已邀请其会员国向科委会提供关于各种辐射源照射的相关数据（见A/76/56号决议）。辐射科委会秘书处已向联合国会员国指定的国家联系人征集信息。已要求并大力鼓励各国政府参与，并向辐射科委会秘书处通报负责收集数据并向秘书处提交数据的官方指定国家联系人的姓名和详细联系方式。联合国会员国及其组织的名单可在此处查阅。
获提名的国家联系人必须注册才能访问辐射科委会在线平台，该平台有助于安全地提交和交流数据，以及进行事实核查。该国其他专家也可注册，以协助国家联系人在国家一级收集所要求的关于患者、作业人员和公众辐照的信息和数据。
会员国的所有贡献都会在辐射科委会向联合国大会提交的相关报告和附件中得到肯定。
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) has the mandate to assess levels and effects of human exposures to ionizing radiation. This encompasses occupational exposure of workers, medical exposure of patients, and public exposure to both natural and human-made sources of ionizing radiation. UN Member States contribute country-specific data to the Committee, facilitating the compilation and reporting of regional and global exposure assessments. The National Contact Person (NCP) in each country acts as the primary point of contact for the Committee, providing realistic and reliable estimates on exposure levels (occupational, medical, and public) within their respective countries.
The NCPs for each country are nominated by their governments and appointed by the UNSCEAR secretariat. Typically, one country NCP is appointed for each exposure category (occupational, medical, and public). However, it is possible for one NCP to coordinate country data submission for more than one exposure category.
An alternate NCP may also be designated to assist each NCP ensuring continuity of collaboration with UNSCEAR. The alternate NCP must be aware of the actions of the NCP and/or assists the NCP as needed.
In the event that the NCP withdraws from this function or is unable to complete the task, they must notify the UNSCEAR secretariat and inform the alternate NCP. This ensures that the alternate NCP can maintain continuity of the work.
Participation in this important international scientific activity brings tangible benefits to contributing Member States such as:
Better understanding of the national and regional levels and trends of radiation exposure of the public, workers, and patients;
Assisting in the development of national policies, strategies and programmes to manage exposures to ionizing radiation, as appropriate;
Providing Member States with comparative information on their radiation exposure levels in relation to global and regional levels, to identify challenges and priorities for improvements;
Providing other national and international institutions with reliable information that can be used in the development of recommendations on safety and protection in processes and procedures that use ionizing radiation;
Providing the scientific community with data that can be used in the development of its research and training tools;
Recognizing each contributing Member States and their NCPs for their valuable contribution to this international scientific work and reporting to the UN General Assembly.
It is recognized that collection of radiation exposure data in the country is not possible by one person or one organization alone. Therefore, the main responsibility of the NCP is to:
Identify individuals or organizations that have such exposure data in their country;
Coordinate collection of such exposure data, however partial or incomplete they may be;
Assemble and organize the data for submission to the UNSCEAR secretariat.
To accomplish such coordination, it is suggested that each NCP uses the following or a similar approach in their own country:
Create a working group composed of internal experts for the collection of relevant information, with the participation of other institutions, governmental or not, researchers, representatives of companies or other institutions, as necessary;
Identify, with the help of the working group, if there are databases, publications or reports by governmental or non-governmental entities that can inform on levels of radiation exposures in the country;
Hold internal meetings to discuss availability of other information (even if they may be limited to one facility or one institution), and to discuss ways to collect or obtain that information;
Evaluate the quality of the data available or collected, with the help of the working group of internal experts;
Estimate national exposure sources and levels based on the collected data, and if possible, prepare those estimates in the format requested by the UNSCEAR questionnaires [hyperlink here] and upload the data;
Forward any data or reports that could not be formatted to the UNSCEAR questionnaires to the UNSCEAR secretariat (NCPs can make their own summary table);
Participate in training seminars, webinars, and meetings scheduled by the UNSCEAR secretariat;
Be responsive to the contacts made by the UNSCEAR secretariat to clarify any questions that UNSCEAR experts may have regarding the data submitted;
Review the draft summaries prepared by UNSCEAR experts to provide any additional information or correct any misinterpretations, as necessary;
Disseminate the final reports published by the Committee among country colleagues and organizations who contributed to the report and raise awareness of UNSCEAR global surveys and of the Committee’s work in general.
Throughout the process, each NCP at any time can request individual meetings with UNSCEAR secretariat to ask for clarification about the requested exposure information or to communicate progress made or challenges encountered.
In addition, UNSCEAR and its secretariat will conduct periodic webinars to train and support NCPs, answer questions, and share experiences from NCPs from other countries.
Furthermore, an NCP Directory will soon be available so each country NCP can communicate with NCPs from other countries to ask questions, share experience, or possibly to collaborate.
