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CDOIF
Chemical and Downstream Oil
Industries Forum
CDOIF is a collaborative venture formed to agree strategic areas for
joint industry / trade union / regulator action aimed at delivering
health, safety and environmental improvements with cross-sector
benefits.
For other built heritage types (e.g. Grade 2 listed buildings), the MATTE definitions for
widespread habitats (land, water) apply, refer to section 3.2.2.
3.2.6
Various receptors, as defined (Water)
[Refer to DETR 1999 Table 9]
Not applicable, the definition (based on standards applicable to continuous emissions
which fall under other EU legislation) is not used to identify and assess a MATTE.
3.2.7
Particular species (Land, Water, Air)
[Refer to DETR 1999 Table 10]
The level of harm that would constitute a MATTE is defined as follows:
a) 1% or more of the population; or,
b) 5% or more of the plant ground cover
Note: the 1% and 5% above refer to national populations of England, Wales or Scotland.
Note that for particular high value or special protection species, consult the relevant
conservation organisation to determine the appropriate threshold.
3.2.8
Marine (Water)
[Refer to DETR 1999 Table 11]
The level of harm that would constitute a MATTE is defined as follows:
a) 2 ha or more of contamination to the littoral or sub-littoral zone; or,
b) 100 ha or more of open sea benthic community; or,
c) 100 or more dead sea birds (500 or more gulls); or,
d) 5 or more dead/significantly impaired sea mammals
Note: Further definition of these areas is defined below and in Figure 3.
x
Supralittoral: area just above high water mark, only submerged during storms;
otherwise ocean spray
x
Benthic: benthic zone is the ecological region at the lowest level of a body of
water such as an ocean or a lake, including the sediment surface and some sub-
surface layers
x
Littoral: intertidal zone between low and high water marks (e.g. from the Mean
High Water Springs to the Mean Low Water Springs on the OS map)
Guideline – Environmental Risk Tolerability for COMAH Establishments v1.0
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