Which of the following is true according to the Central Pollution Control Board $\text{(CPCB)}$, Government of India's notification issued in the year $2009$?
- $24$ hour averaged standard for $\mathrm{PM}_{2.5}$ in ambient air is $60 \mu \mathrm{g} / \mathrm{m}^3 ; 24$ hour averaged standard for $\mathrm{PM}_{10}$ in ambient air is $100 \mu \mathrm{g} / \mathrm{m}^3$
- $24$ hour averaged standard for $\mathrm{PM}_{2.5}$ in indoor air is $60 \mu \mathrm{g} / \mathrm{m}^3 ; 24$ hour averaged standard for $\mathrm{PM}_{10}$ in ambient air is $100 \mu \mathrm{g} / \mathrm{m}^3$
- $24$ hour averaged standard for $\mathrm{PM}_{2.5}$ in ambient air is $60 \mu \mathrm{g} / \mathrm{m}^3 ; 24$ hour averaged standard for $\mathrm{PM}_{10}$ in indoor air is $100 \mu \mathrm{g} / \mathrm{m}^3$
- $24$ hour averaged standard for $\mathrm{PM}_{2.5}$ in indoor air is $60 \mu \mathrm{g} / \mathrm{m}^3 ; 24$ hour averaged standard for $\mathrm{PM}_{10}$ in indoor air is $100 \mu \mathrm{g} / \mathrm{m}^3$
