Analysis | Calculation | Practical meaning/interpretation |
---|---|---|
Temperature effect on total planktonic loads (Table 3) | \( \frac{{\left({\displaystyle \sum }{\left[\mathrm{L}\mathrm{p}\right]}_{\mathrm{Distal}}\times {\forall}_{\mathrm{Distal}}+{\left[\mathrm{L}\mathrm{p}\right]}_{\mathrm{Recirc}}\times {\forall}_{\mathrm{Recirc}}\right)}_{\mathrm{Control}}}{{\left({\displaystyle \sum }{\left[\mathrm{L}\mathrm{p}\right]}_{\mathrm{Distal}}\times {\forall}_{\mathrm{Distal}}+{\left[\mathrm{L}\mathrm{p}\right]}_{\mathrm{Recirc}}\times {\forall}_{\mathrm{Recirc}}\right)}_{\mathrm{Experimental}}} \) | Factor by which planktonic L. pneumophila increase in the total system if the temperature is not elevated to the experimental setting |
Temperature effect on the recirculating line and tank loads (Table 4) | \( \frac{{\left({\displaystyle \sum }{\left[\mathrm{L}\mathrm{p}\right]}_{\mathrm{Recirc}}\times {\forall}_{\mathrm{Recirc}}\right)}_{\mathrm{Control}}}{{\left({\displaystyle \sum }{\left[\mathrm{L}\mathrm{p}\right]}_{\mathrm{Recirc}}\times {\forall}_{\mathrm{Recirc}}\right)}_{\mathrm{Experimental}}} \) | Factor by which planktonic L. pneumophila increase in the recirculating portions of the system if the temperature is not elevated to the experimental setting |
Temperature effect on distal tap loads (Table 3) | \( \frac{{\left({\displaystyle \sum }{\left[\mathrm{L}\mathrm{p}\right]}_{\mathrm{Distal}}\times {\forall}_{\mathrm{Distal}}\right)}_{\mathrm{Control}}}{{\left({\displaystyle \sum }{\left[\mathrm{L}\mathrm{p}\right]}_{\mathrm{Distal}}\times {\forall}_{\mathrm{Distal}}\right)}_{\mathrm{Experimental}}} \) | Factor by which planktonic L. pneumophila increase at the tap if the temperature is not elevated to the experimental setting |
Re-growth in the recirculating lines (Fig. 3) | [Lp]Recirc − [Lp]Inf | Re-growth in the recirculating lines relative to the influent |
Concentration (Fig. 4a) | [Lp] | L. pneumophila concentration |
Factor increase (Fig. 4b) | \( \frac{{\left[\mathrm{L}\mathrm{p}\right]}_{\mathrm{Distal}}}{{\left[\mathrm{L}\mathrm{p}\right]}_{\mathrm{Recirc}}} \) | Re-growth in the distal taps relative to the recirculating line |
Weekly yield (Fig. 4c) | [Lp]Distal × ∀ Distal × Use | Total amount of L. pneumophila delivered at the tap per week |
Biofilm re-growth (Fig. 5) | L. pneumophila in gene copies/cm2 | Biofilm densities of L. pneumophila; because the same areas were re-swabbed, any L. pneumophila detected is assumed to have re-established during that experimental condition |