A person must not conduct blasting if—
(a) the airblast overpressure is more than 115dB Z Peak for 4 out of any 5 consecutive blasts; or
(b) the airblast overpressure is more than 120dB Z Peak for any blast; or
(c) the ground vibration is—(i) for vibrations of more than 35Hz—more than 25mm a second ground vibration, peak particle velocity; or(ii) for vibrations of no more than 35Hz—more than 10mm a second ground vibration, peak particle velocity.