High-Impact Plastic Consumables:
The Key to Reducing Lab Scope 3 Emissions

The sheer volume of plastic in laboratories is a significant environmental concern. While essential for maintaining sterility, the production and disposal of plastic contribute roughly 3% of global greenhouse gas emissions. Laboratories are a major part of this, with a single research facility generating anywhere from 60kg to over 1,000kg of plastic waste annually. This positions plastic waste, particularly biohazardous waste, as a primary driver of the life sciences industry’s Scope 3 emissions.

To effectively lower these emissions, laboratories must adopt smarter waste treatment and management strategies. By focusing on recycling, material recovery, and sustainable procurement, especially for high-impact plastic consumables, we can reduce emissions from plastic disposal and lessen the upstream demand for new virgin materials.

Why Focusing on High-Impact Plastic Consumables is Key

It may seem daunting, but you don’t need to overhaul every single process to make a significant impact. A recent analysis from Uppsala University, highlighted by My Green Lab, revealed a crucial insight: while a lab purchased nearly 390 tonnes of plastic over five years, the bulk of the environmental impact came from a small, specific group of high-use items.

By analysing procurement data, researchers identified that products like gloves, petri dishes, pipette tips, tubes, and hazardous waste containers constitute most of a lab’s plastic waste and associated Scope 3 emissions. In fact, this top 20% of products accounted for over 80% of the total plastic mass and expenditure. This means that by targeting these high-impact consumables for replacement, reduction, reuse, or recycling, labs can drastically cut both plastic waste and the greenhouse gas emissions linked to their lifecycle.

The 4 Rs of Sustainable Lab Practice: A Waste Hierarchy Framework

Once you have identified your high-impact consumables by reviewing procurement data, you can apply the classic waste hierarchy – Replace, Reduce, Re-use, Recycle – to determine the most sustainable outcome for these materials.

Replace Your Consumables

One of the most effective strategies is to replace conventional single-use plastics with more sustainable options. Consider switching to products with recycled content or adopting reusable alternatives where sterility protocols allow. Even small substitutions for high-volume items like gloves or sample containers can create a measurable, positive impact over time.

Reduce Your Consumption

Labs can significantly reduce waste by evaluating ordering practices, improving inventory management, and enhancing workflow efficiency to prevent overconsumption and the disposal of expired materials. Simple operational adjustments, such as selecting appropriately sized consumables that match protocol volumes, not only reduce waste generation but also lower procurement costs.

Re-use Your Materials

While sterility requirements can limit reuse opportunities, many items can still be safely reused. Pipette tips, for example, make up a huge percentage of lab waste. Implementing automated tip washing systems is an excellent way to maintain sterility while simultaneously cutting back on the volume of biomedical waste generated.

Recycle Your High-Impact Plastics

For materials that cannot be eliminated or reused, effective waste recycling is the next best step. Recycling these high-impact consumables dramatically reduces their environmental footprint by diverting them from landfills and lessening the need for raw material extraction. This process of biohazardous waste recycling is crucial for lowering emissions.

Innovative technologies, such as Envetec’s GENERATIONS system, enable laboratories to treat and decontaminate waste on-site. This process transforms used plastics into a clean, disinfected polymer flake that is safe for transport and recycling, unlike traditional clinical waste collection methods that lead to incineration. This approach not only supports a circular economy but also offers a significant advantage over working with standard biohazardous waste treatment companies that rely on high-emission disposal methods like autoclaving or incineration.