Data Resources: Hazardous Chemicals Data Base
Several of ESS systems include a hazardous substances data base, that
provides chemical property data for the various simulation and assessment
models.
In RiskWare and its implementations
such as SIGRIC
the chemical data base entries are structured according to
the directive 91/155/EEC, containing both the 16 articles of
the European MSDS scheme
in hypertext format (XML/HTML), as well as a database component
for a large set of numerical and text atributes.
The hypertext includes dynamic components instantiated from the
data base contents.
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Links to external data bases and information resources, like the
US EPA's Office for Pollution Prevention and Toxics
Chemicals Facts Sheets
and several on-line MSDS data bases can provide additional information.
Numerous MSDS have been converted to HTML format
for direct inclusion with RiskWare's embedded browser.
Chemicals are linked to process plants and storage sites, and in turn can
provide links to further toxicological information used for impact
assessment, production process information, waste streams, regulations,
and the meta data describing the sources of the information.
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Identification and retrieval of chemicals is supported by name
including numerous synonyms, CAS, UN and EC numbers, and from
lists sorted by a number of important characteristics.
The substance lists of various
EU Directives are at the core of the chemical data bases.
A number of projects utilize various implementation of the hazardous chemicals
data base, including:
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In a typical implementation in SIGRIC,
the Sistema di Gestione Rischio Chimico for the Province of Pisa,
Regione Toscana, Italy, the data base is closely integrated
with RTXPS, a real-time expert system
for emergency management, and a set of
emergency simulation models, that directly use the
physical chemical property data from the data base.
The data base combines numerical and symolic fields that
are directly accessible to the expert system and its rules,
and parallel hypertext pages for material safety data sheets (MSDS).
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