Priority substances

Commitment

“Shell chemicals companies are committed to achieving continuous environmental performance improvements.”

Priority Substance* emissions

There were further significant decreases in both benzene and butadiene emissions between 2005 and 2006, in line with the target to achieve a 35% reduction in unit emissions from 2002 levels by 2007.

Link to more information on benzene and butadiene emissions

 

Priority substances (kilogrammes)	Annual Reporting Threshold	To air	To water	Total
Benzene	100	149,650	2,720	152,370
Butadiene, 1,3	100	170,761	0	170,761
Chloro-2,3 epoxypropane (ECH)	100	4,770	0	4,770
Propylene Oxide (PO)	100	5,446	10,445	15,891
Ethylene Oxide (EO)	100	15,210	2,443	17,653
Vinyl chloride	100	8,100	25	8,125
Allyl chloride	1,000	0	0	0
Dichloropropene, 2,3	100	0	0	0
Dichloropropene, 1,3	100	2,012	0	2,012
Drins	1	0	0	0
Extractable Organic Chloride (EOCI)	10	0	77	77
Ethylbenzene	1,000	16,967	3,500	20,467
Styrene	1,000	33,201	4,203	37,404
Toluene	1,000	75,523	700	76,223
Xylenes	1,000	56,496	247	56,743
Cadmium	1	8	2	10
Chromium	10	5	101	106
Cobalt	10	49	2,326	2,375
Copper	10	38	99	137
Lead	10	31	2	33
Mercury	1	11	2	13
Nickel	10	1,729	447	2,176
Zinc	100	2,500	1,545	4,045
Kjeldahl nitrogen	1,000	0	192,520	192,520
Phosphorous	1,000	0	468,117	468,117
Total		542,507	689,521	1,232,028

* The list of ‘priority’ substances is based on a number of (inter)nationally recognised listings of substances, such as EU List I, TA Luft and the US Toxic Release Inventory.

The substances included are considered to be of prime concern on the basis of their known hazardous properties, potentially affecting human health and/or environmental quality. We have aimed to include all substances with relevance to Shell chemicals companies in the current list. The data includes permitted and any unplanned releases.

Please note that all figures greater than 1,000 on the table are rounded to three significant figures.

Annual reporting thresholds are applied at individual locations.