- Page 51.

- VOC emissions CONVERTED from (metric kilotons) using : http://www.unitconversion.org/weight/kilotons-metric-to-tons-metric-conversion.html

- The figures exclude Sigma-Aldrich since the integration process is still underway.

- The VOC, nitrogen oxide, sulfur dioxide, and dust emissions reported here are attributable to production

activities as well as energy generation. These figures do not include emissions from vehicles. Emissions are

determined partially based on measurements and partially based on calculations or estimates. Only some sites

are required to measure individual parameters.

Value added is in tonnes according to metric question (system showing density)

As noted in the comments section, the answer is stipulated in metric tonnes, and has been checked as such