Substitution principle (sustainability)

Last updated

The substitution principle in sustainability is the maxim of how processes, services, and products should be replaced with alternatives that result in a lower environmental impact. An example of a strong, hazard-based interpretation of the substitution principle in application regarding chemicals considers the overall impact: "hazardous chemicals should be substituted by less hazardous alternatives or preferably alternatives that mitigates identifiable hazards impacts". [1]

Contents

The principle has historically been promoted by environmental groups. This concept is becoming increasingly mainstream, being a key concept in green chemistry and a central element of EU REACH regulation. [2] Critics of the principle claim it is very difficult to implement in reality, especially in terms of legislation.[ citation needed ]

Nonetheless, the concept is an important one and a key driver behind identifying "Substances of Very High Concern" in REACH and the development of hazardous substance lists such as the SIN List and the ETUC Trade Union Priority List. EU-funded projects such as SubsPort are under development to aid the identification and development of safer substitutes for hazardous chemicals. [3]

See also

Related Research Articles

<span class="mw-page-title-main">Safety data sheet</span> Sheet listing work-related hazards

A safety data sheet (SDS), material safety data sheet (MSDS), or product safety data sheet (PSDS) is a document that lists information relating to occupational safety and health for the use of various substances and products. SDSs are a widely used system for cataloguing information on chemicals, chemical compounds, and chemical mixtures. SDS information may include instructions for the safe use and potential hazards associated with a particular material or product, along with spill-handling procedures. The older MSDS formats could vary from source to source within a country depending on national requirements; however, the newer SDS format is internationally standardized.

Green chemistry, similar to sustainable chemistry or circular chemistry, is an area of chemistry and chemical engineering focused on the design of products and processes that minimize or eliminate the use and generation of hazardous substances. While environmental chemistry focuses on the effects of polluting chemicals on nature, green chemistry focuses on the environmental impact of chemistry, including lowering consumption of nonrenewable resources and technological approaches for preventing pollution.

<span class="mw-page-title-main">Chemical hazard</span> Non-biological substance that has the potential to cause harm to life or health

A chemical hazard is a (non-biological) substance that has the potential to cause harm to life or health. Chemicals are widely used in the home and in many other places. Exposure to chemicals can cause acute or long-term detrimental health effects. There are many types of hazardous chemicals, including neurotoxins, immune agents, dermatologic agents, carcinogens, reproductive toxins, systemic toxins, asthmagens, pneumoconiotic agents, and sensitizers. In the workplace, exposure to chemical hazards is a type of occupational hazard. The use of protective personal equipment (PPE) may substantially reduce the risk of damage from contact with hazardous materials.

<span class="mw-page-title-main">Registration, Evaluation, Authorisation and Restriction of Chemicals</span> European Union regulation

Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) is a European Union regulation dating from 18 December 2006. REACH addresses the production and use of chemical substances, and their potential impacts on both human health and the environment. Its 849 pages took seven years to pass, and it has been described as the most complex legislation in the Union's history and the most important in 20 years. It is the strictest law to date regulating chemical substances and will affect industries throughout the world. REACH entered into force on 1 June 2007, with a phased implementation over the next decade. The regulation also established the European Chemicals Agency, which manages the technical, scientific and administrative aspects of REACH.

<span class="mw-page-title-main">Toxic Substances Control Act of 1976</span> United States federal law

The Toxic Substances Control Act (TSCA) is a United States law, passed by the 94th United States Congress in 1976 and administered by the United States Environmental Protection Agency (EPA), that regulates chemicals not regulated by other U.S. federal statutes, including chemicals already in commerce and the introduction of new chemicals. When the TSCA was put into place, all existing chemicals were considered to be safe for use and subsequently grandfathered in. Its three main objectives are to assess and regulate new commercial chemicals before they enter the market, to regulate chemicals already existing in 1976 that posed an "unreasonable risk of injury to health or the environment", as for example PCBs, lead, mercury and radon, and to regulate these chemicals' distribution and use.

<span class="mw-page-title-main">European Chemicals Agency</span> Agency of the European Union

The European Chemicals Agency is an agency of the European Union which manages the technical and administrative aspects of the implementation of the European Union regulation called Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH). ECHA is the driving force among regulatory authorities in implementing the EU's chemicals legislation. ECHA has to ascertain that companies comply with the legislation, advances the safe use of chemicals, provides information on chemicals and addresses chemicals of concern. It is located in Helsinki, Finland. ECHA is an independent and mature regulatory agency established by REACH. It is not a subsidiary entity of the European Commission.

In the chemical and process industries, a process has inherent safety if it has a low level of danger even if things go wrong. Inherent safety contrasts with other processes where a high degree of hazard is controlled by protective systems. As perfect safety cannot be achieved, common practice is to talk about inherently safer design. “An inherently safer design is one that avoids hazards instead of controlling them, particularly by reducing the amount of hazardous material and the number of hazardous operations in the plant.”

<span class="mw-page-title-main">Globally Harmonized System of Classification and Labelling of Chemicals</span> International standard managed by the United Nations

The Globally Harmonized System of Classification and Labelling of Chemicals (GHS) is an internationally agreed-upon standard managed by the United Nations that was set up to replace the assortment of hazardous material classification and labelling schemes previously used around the world. Core elements of the GHS include standardized hazard testing criteria, universal warning pictograms, and harmonized safety data sheets which provide users of dangerous goods with a host of information. The system acts as a complement to the UN Numbered system of regulated hazardous material transport. Implementation is managed through the UN Secretariat. Although adoption has taken time, as of 2017, the system has been enacted to significant extents in most major countries of the world. This includes the European Union, which has implemented the United Nations' GHS into EU law as the CLP Regulation, and United States Occupational Safety and Health Administration standards.

Design for the Environment (DfE) is a design approach to reduce the overall human health and environmental impact of a product, process or service, where impacts are considered across its life cycle. Different software tools have been developed to assist designers in finding optimized products or processes/services. DfE is also the original name of a United States Environmental Protection Agency (EPA) program, created in 1992, that works to prevent pollution, and the risk pollution presents to humans and the environment. The program provides information regarding safer chemical formulations for cleaning and other products. EPA renamed its program "Safer Choice" in 2015.

An occupational exposure limit is an upper limit on the acceptable concentration of a hazardous substance in workplace air for a particular material or class of materials. It is typically set by competent national authorities and enforced by legislation to protect occupational safety and health. It is an important tool in risk assessment and in the management of activities involving handling of dangerous substances. There are many dangerous substances for which there are no formal occupational exposure limits. In these cases, hazard banding or control banding strategies can be used to ensure safe handling.

Hazard statements form part of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS). They are intended to form a set of standardized phrases about the hazards of chemical substances and mixtures that can be translated into different languages. As such, they serve the same purpose as the well-known R-phrases, which they are intended to replace.

<span class="mw-page-title-main">Index of environmental articles</span>

The natural environment, commonly referred to simply as the environment, includes all living and non-living things occurring naturally on Earth.

The California Green Chemistry Initiative (CGCI) is a six-part initiative to reduce public and environmental exposure to toxins through improved knowledge and regulation of chemicals; two parts became statute in 2008. The other four parts were not passed, but are still on the agenda of the California Department of Toxic Substances Control green ribbon science panel discussions. The two parts of the California Green Chemistry Initiative that were passed are known as AB 1879 : Hazardous Materials and Toxic Substances Evaluation and Regulation and SB 509 : Toxic Information Clearinghouse. Implementation of CGCI has been delayed indefinitely beyond the January 1, 2011.

The International Chemical Secretariat (ChemSec) is a governmental funded organisation founded in Sweden in 2002 to advocate in favour of stricter regulatory controls on potentially hazardous chemicals and to work with businesses on reducing the production and use of hazardous substances in their products and supply chains. ChemSec disclosed a profit of 1.56 Mio SEK for the financial year 2018. ChemSec maintains the SIN List, identifying hazardous substances likely to be restricted under EU REACH regulation.

The Substitute It Now! List is a database developed by the International Chemical Secretariat (ChemSec) of chemicals the uses of which are likely to become legally restricted under EU REACH regulation. The list is being used by public interest groups as a campaign tool to advocate for increasing the pace of implementation of REACH and by commercial interests to identify substances for control in chemicals management programmes.

The substitution of dangerous chemicals in the workplace is the process of replacing chemicals with less hazardous alternatives or eliminating them, generally to improve occupational health and safety or minimize harmful environmental impact. The process can be lengthy, as an assessment of dangers, costs, and practicality is necessary. Substituting hazardous chemicals follows the principles of green chemistry and results in clean technology.

Alternatives assessment or alternatives analysis is a problem-solving approach used in environmental design, technology, and policy. It aims to minimize environmental harm by comparing multiple potential solutions in the context of a specific problem, design goal, or policy objective. It is intended to inform decision-making in situations with many possible courses of action, a wide range of variables to consider, and significant degrees of uncertainty. Alternatives assessment was originally developed as a robust way to guide precautionary action and avoid paralysis by analysis; authors such as O'Brien have presented alternatives assessment as an approach that is complementary to risk assessment, the dominant decision-making approach in environmental policy. Likewise, Ashford has described the similar concept of technology options analysis as a way to generate innovative solutions to the problems of industrial pollution more effectively than through risk-based regulation.

The health and safety hazards of nanomaterials include the potential toxicity of various types of nanomaterials, as well as fire and dust explosion hazards. Because nanotechnology is a recent development, the health and safety effects of exposures to nanomaterials, and what levels of exposure may be acceptable, are subjects of ongoing research. Of the possible hazards, inhalation exposure appears to present the most concern, with animal studies showing pulmonary effects such as inflammation, fibrosis, and carcinogenicity for some nanomaterials. Skin contact and ingestion exposure, and dust explosion hazards, are also a concern.

Hazard substitution is a hazard control strategy in which a material or process is replaced with another that is less hazardous. Substitution is the second most effective of the five members of the hierarchy of hazard controls in protecting workers, after elimination. Substitution and elimination are most effective early in the design process, when they may be inexpensive and simple to implement, while for an existing process they may require major changes in equipment and procedures. The concept of prevention through design emphasizes integrating the more effective control methods such as elimination and substitution early in the design phase.

The GreenScreen for Safer Chemicals is a transparent, open standard for assessing chemical hazard that supports alternatives assessment for toxics use reduction through identifying chemicals of concern and safer alternatives. It is used by researchers, product formulators and certifiers in a variety of industries, including building products, textiles, apparel, and consumer products.

References

  1. Greenpeace, (2003, 2005). Safer Chemicals Within Reach: Using the Substitution Principle to drive Green Chemistry. London. p.7 (PDF)
  2. European Commission website on REACH. http://ec.europa.eu/environment/chemicals/reach/reach_intro.htm
  3. Lissner L, Romano D. Substitution for Hazardous Chemicals on an International Level-The Approach of the European Project "SUBSPORT". New Solut. 2011 Jan 1;21(3):477-97. PubMed PMID   22001043.