Problem $4\mathrm{.}3$

You are performing carbon auditing for a construction contrator Company A for construction

work, and some activity data and related emission factors of Company A in $2020$ are tabulated

in Table $1$ as follows.

Table $1.$ Activity data and emission factor of Company A in year $2020$

$($i$)$ Assuming that B$35$ biodiesel is adopted by Company A to reduce carbon footprint, and

the fuel economy of the car used is $50k\frac{m}{g}al.$ Find the daily carbon footprint caused by mobile

combusion if $4$ cars are needed to travel for $30km$ every day. $($Assuming that $C{O}_2$ is the only

GHG emitted.$)(2$ marks$)$

$($ii$)$ Categorize the activities in Table $1$ by scope $1,2$ and $3.(3$ marks$)$

$($iii$)$ By $($i$),($ii$)$ and Table $1,$ calculate the total annual carbon footprint of Company A in

$2020($Hint: You should calculate the annual carbon footprint of each activities in Table $1$ and

sum them up$).(6$ marks$)$

Note:

Carbon emission $=$ Activity data $($e$.$g$.$ fuel consumption$)$ Emission Factor

Emission equivalent