sec.89Dust

### sec.89 Dust A coal mine’s safety and health management system must provide ways of ensuring— each coal mine worker’s exposure to respirable dust at the mine is kept to an acceptable level; and the worker does not breathe an atmosphere at the mine containing respirable dust exceeding an average concentration, calculated under AS 2985:2009, equivalent to the following for an 8-hour period— for coal dust—1.5mg/m 3 air; for free silica—0.05mg/m 3 air. AS 2985:2009 ‘Workplace atmospheres—Method for sampling and gravimetric determination of respirable dust’ If a person works a shift of more than 8 hours at the mine, the system must provide ways of ensuring the person’s dosage of respirable dust is not more than the equivalent dosage for a person working an 8-hour shift. The system must provide that, if the average concentration of respirable dust in the atmosphere is above the levels stated in subsection (1) — the controls for minimising dust must be reviewed; and the system must be changed to ensure the average concentration is reduced to, or below, the levels stated in subsection (1) . The system must provide ways of suppressing excessive airborne dust so a person’s safety is not threatened, including, for example, by reduced visibility. The system must provide for the following— monitoring, and preparing a record of, concentrations of respirable dust in the atmosphere of the work environment; keeping the record in a location that is easily accessible by each coal mine worker at the mine; submitting the record to the chief inspector— in a way, and in a format, approved by the chief inspector; and for development operations or longwall operations—at least once every 3 months and as otherwise directed by an inspector; and otherwise— as required under a recognised standard related to the monitoring of respirable dust at coal mines; or as otherwise directed by an inspector; the investigation and reporting procedure stated in section 89A for high average respirable dust concentrations. s 89 amd 2018 SL No. 153 s 4 ; 2020 SL No. 169 s 4 (sec.89-ssec.1) A coal mine’s safety and health management system must provide ways of ensuring— each coal mine worker’s exposure to respirable dust at the mine is kept to an acceptable level; and the worker does not breathe an atmosphere at the mine containing respirable dust exceeding an average concentration, calculated under AS 2985:2009, equivalent to the following for an 8-hour period— for coal dust—1.5mg/m 3 air; for free silica—0.05mg/m 3 air. AS 2985:2009 ‘Workplace atmospheres—Method for sampling and gravimetric determination of respirable dust’ (sec.89-ssec.2) If a person works a shift of more than 8 hours at the mine, the system must provide ways of ensuring the person’s dosage of respirable dust is not more than the equivalent dosage for a person working an 8-hour shift. (sec.89-ssec.3) The system must provide that, if the average concentration of respirable dust in the atmosphere is above the levels stated in subsection (1) — the controls for minimising dust must be reviewed; and the system must be changed to ensure the average concentration is reduced to, or below, the levels stated in subsection (1) . (sec.89-ssec.4) The system must provide ways of suppressing excessive airborne dust so a person’s safety is not threatened, including, for example, by reduced visibility. (sec.89-ssec.5) The system must provide for the following— monitoring, and preparing a record of, concentrations of respirable dust in the atmosphere of the work environment; keeping the record in a location that is easily accessible by each coal mine worker at the mine; submitting the record to the chief inspector— in a way, and in a format, approved by the chief inspector; and for development operations or longwall operations—at least once every 3 months and as otherwise directed by an inspector; and otherwise— as required under a recognised standard related to the monitoring of respirable dust at coal mines; or as otherwise directed by an inspector; the investigation and reporting procedure stated in section 89A for high average respirable dust concentrations. - (a) each coal mine worker’s exposure to respirable dust at the mine is kept to an acceptable level; and - (b) the worker does not breathe an atmosphere at the mine containing respirable dust exceeding an average concentration, calculated under AS 2985:2009, equivalent to the following for an 8-hour period— (i) for coal dust—1.5mg/m 3 air; (ii) for free silica—0.05mg/m 3 air. Note— AS 2985:2009 ‘Workplace atmospheres—Method for sampling and gravimetric determination of respirable dust’ - (i) for coal dust—1.5mg/m 3 air; - (ii) for free silica—0.05mg/m 3 air. - (i) for coal dust—1.5mg/m 3 air; - (ii) for free silica—0.05mg/m 3 air. - (a) the controls for minimising dust must be reviewed; and - (b) the system must be changed to ensure the average concentration is reduced to, or below, the levels stated in subsection (1) . - (a) monitoring, and preparing a record of, concentrations of respirable dust in the atmosphere of the work environment; - (b) keeping the record in a location that is easily accessible by each coal mine worker at the mine; - (c) submitting the record to the chief inspector— (i) in a way, and in a format, approved by the chief inspector; and (ii) for development operations or longwall operations—at least once every 3 months and as otherwise directed by an inspector; and (iii) otherwise— (A) as required under a recognised standard related to the monitoring of respirable dust at coal mines; or (B) as otherwise directed by an inspector; - (i) in a way, and in a format, approved by the chief inspector; and - (ii) for development operations or longwall operations—at least once every 3 months and as otherwise directed by an inspector; and - (iii) otherwise— (A) as required under a recognised standard related to the monitoring of respirable dust at coal mines; or (B) as otherwise directed by an inspector; - (A) as required under a recognised standard related to the monitoring of respirable dust at coal mines; or - (B) as otherwise directed by an inspector; - (d) the investigation and reporting procedure stated in section 89A for high average respirable dust concentrations. - (i) in a way, and in a format, approved by the chief inspector; and - (ii) for development operations or longwall operations—at least once every 3 months and as otherwise directed by an inspector; and - (iii) otherwise— (A) as required under a recognised standard related to the monitoring of respirable dust at coal mines; or (B) as otherwise directed by an inspector; - (A) as required under a recognised standard related to the monitoring of respirable dust at coal mines; or - (B) as otherwise directed by an inspector; - (A) as required under a recognised standard related to the monitoring of respirable dust at coal mines; or - (B) as otherwise directed by an inspector;