(1) Whether her department is carrying out any (a) compliance and enforcement and (b) offensive odour investigations with regard to air quality in (i) St Helena Bay and (ii) Britannia Bay; if not, why not, in each case; if so, what are the relevant details in each case; (2) whether she has found that progress has been made in improving air quality in these areas since the beginning of 2010; if not, why not; if so, what are the relevant details?