[en] A study have been carried out using gamma-ray spectrometric system to determine the natural radioactivity level in bricks made from industrial waste and their associated radiation hazard. Brick-1 and brick-2 contained waste from coal power plant and granite industry, respectively. The leachability of radionuclides from these bricks was also investigated. The activity concentration values of ²²⁶Ra, ²²⁸Ra, ²³²Th, and ⁴⁰K are 64.25, 63.15, 67.9 and 254.19 Bq kg^-1, respectively in brick-1, and 193, 164.48, 164.63 and 1348.75 Bq kg^-1, respectively in brick-2. The radiation hazard indexes such as radium equivalent activities (Ra_eq), representative level index (I_γr), external hazard index (H_ex) and internal hazard index (H_in) were calculated and compared with the internationally approved values. Results indicate that brick-1 showed less radiological hazard than brick-2. This suggested that brick-1 could be used in building construction without exceeding the proposed criterion level. The leachability of ²²⁶Ra for bricks showed the activity concentration slightly exceeded the limit generally used for industrial wastewater for example 1 BqL^-1. (author)