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Table 1

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Dose standards to control radioactive effluents discharged from NPPs.

Classification	Radioactive effluents	Categories	Annual limits per unit
Design of an NPP	Gaseous	Air absorbed dose by gamma ray	0.1 mGy y⁻¹
		Air absorbed dose by beta ray	0.2 mGy y⁻¹
		Effective dose by external radiation exposure	0.05 mSv y⁻¹
		Skin equivalent dose by external radiation exposure	0.15 mSv y⁻¹
		Organ equivalent dose by particle radioactive substances, ³H, ¹⁴C, and radioiodine	0.15 mSv y⁻¹
	Liquid	Effective dose	0.03 mSv y⁻¹
	Liquid	Organ equivalent dose	0.1 mSv y⁻¹
Operation of multiple NPPs in a single site		Effective dose	0.25 mSv y^{-1 a}
Operation of multiple NPPs in a single site		Thyroid equivalent dose	0.75 mSv y^{-1 a}

Classification	Radioactive effluents	Categories	Annual limits per unit
Design of an NPP	Gaseous	Air absorbed dose by gamma ray	0.1 mGy y⁻¹
		Air absorbed dose by beta ray	0.2 mGy y⁻¹
		Effective dose by external radiation exposure	0.05 mSv y⁻¹
		Skin equivalent dose by external radiation exposure	0.15 mSv y⁻¹
		Organ equivalent dose by particle radioactive substances, ³H, ¹⁴C, and radioiodine	0.15 mSv y⁻¹
	Liquid	Effective dose	0.03 mSv y⁻¹
	Liquid	Organ equivalent dose	0.1 mSv y⁻¹
Operation of multiple NPPs in a single site		Effective dose	0.25 mSv y^{-1 a}
Operation of multiple NPPs in a single site		Thyroid equivalent dose	0.75 mSv y^{-1 a}

^aAnnual limit per site

Table 1

Open in new tab

Dose standards to control radioactive effluents discharged from NPPs.

Classification	Radioactive effluents	Categories	Annual limits per unit
Design of an NPP	Gaseous	Air absorbed dose by gamma ray	0.1 mGy y⁻¹
		Air absorbed dose by beta ray	0.2 mGy y⁻¹
		Effective dose by external radiation exposure	0.05 mSv y⁻¹
		Skin equivalent dose by external radiation exposure	0.15 mSv y⁻¹
		Organ equivalent dose by particle radioactive substances, ³H, ¹⁴C, and radioiodine	0.15 mSv y⁻¹
	Liquid	Effective dose	0.03 mSv y⁻¹
	Liquid	Organ equivalent dose	0.1 mSv y⁻¹
Operation of multiple NPPs in a single site		Effective dose	0.25 mSv y^{-1 a}
Operation of multiple NPPs in a single site		Thyroid equivalent dose	0.75 mSv y^{-1 a}

Classification	Radioactive effluents	Categories	Annual limits per unit
Design of an NPP	Gaseous	Air absorbed dose by gamma ray	0.1 mGy y⁻¹
		Air absorbed dose by beta ray	0.2 mGy y⁻¹
		Effective dose by external radiation exposure	0.05 mSv y⁻¹
		Skin equivalent dose by external radiation exposure	0.15 mSv y⁻¹
		Organ equivalent dose by particle radioactive substances, ³H, ¹⁴C, and radioiodine	0.15 mSv y⁻¹
	Liquid	Effective dose	0.03 mSv y⁻¹
	Liquid	Organ equivalent dose	0.1 mSv y⁻¹
Operation of multiple NPPs in a single site		Effective dose	0.25 mSv y^{-1 a}
Operation of multiple NPPs in a single site		Thyroid equivalent dose	0.75 mSv y^{-1 a}

^aAnnual limit per site