# PathCarbon

> PathCarbon is an environmental consultancy for heavy industry, infrastructure and exporters, with team members and associates in India, the GCC, the United Kingdom, Germany, Austria, France, the United States and Australia, taking on projects worldwide. It prepares environmental and social impact assessments (ESIA) to IFC Performance Standards and the Equator Principles; runs air dispersion (AERMOD, CALPUFF), noise (ISO 9613-2), hydrology, hydrodynamic and underwater-noise models; calculates EU CBAM embedded emissions for exporters of steel, aluminium, cement and fertilisers; builds Scope 1–3 inventories and product LCAs (ISO 14040/44, ISO 14067); develops environmental data tools configured to client requirements; and supplies, configures and ships environmental monitoring instruments worldwide. Contact: info@pathcarbon.com. PathCarbon is not a CBAM verifier; verification is carried out by EU-accredited verifiers.

## Services
- [CBAM embedded emissions for exporters](https://www.pathcarbon.com/cbam-embedded-emissions.html): EU and UK CBAM embedded emissions per installation and good, data for the EU importer and verifier
- [EIA and ESIA consultancy](https://www.pathcarbon.com/eia-esia-consultancy.html): environmental impact assessment (EIA) and environmental and social impact assessment (ESIA) to IFC Performance Standards, the Equator Principles and national EIA rules
- [Environmental modelling](https://www.pathcarbon.com/environmental-modelling.html): AERMOD/CALPUFF air dispersion, ISO 9613-2 noise, hydrology, hydrodynamics, underwater noise
- [Carbon accounting and LCA](https://www.pathcarbon.com/carbon-accounting-lca.html): Scope 1-3 inventories, supplier data, ISO 14067 product footprints, BRSR Core
- [Environmental monitoring instruments](https://www.pathcarbon.com/environmental-monitoring-instruments.html): air, noise, meteorological, water and stack monitoring equipment configured to the required method and shipped worldwide
- [All services](https://www.pathcarbon.com/services.html)

## Tools
- [Garment process footprint, free demo](https://www.pathcarbon.com/apparel.html): kg CO2e per manufacturing step, from spinning to assembly
- [Tools](https://www.pathcarbon.com/tools.html): environmental and carbon data tools configured to each client's requirements

## Technical notes
- [Twelve weeks of monitoring is not automatically a baseline](https://www.pathcarbon.com/tn-601.html): Reviewers rarely reject a baseline for having too few data points. They reject it when the report does not show that the data represents the site.
- [Three inputs decide most dispersion results](https://www.pathcarbon.com/tn-602.html): In our experience, the meteorological record, the source parameters and the treatment of buildings and terrain account for most of the spread between two credible models of the same stack.
- [Most Scope 3 numbers are secondary data, and the disclosure should say so](https://www.pathcarbon.com/tn-603.html): For companies reporting to CDP, supply chain emissions are on average 26 times operational emissions, and in our experience most of that figure still comes from average-data factors.
- [What changed in the 2021 WHO air quality guidelines](https://www.pathcarbon.com/tn-604.html): Of the seven guideline values that existed in both editions, WHO tightened five, left ozone unchanged and raised SO₂. A baseline that meets national standards can still sit several times above the 2021 values.
- [Steel route intensity and what it means for an iron metallics project](https://www.pathcarbon.com/tn-605.html): Per tonne of crude steel, the blast furnace route emits more than three times the CO₂ of scrap-based electric arc furnaces. Direct reduced iron sits between them.
- [Marine piling under the 2024 NOAA thresholds](https://www.pathcarbon.com/tn-606.html): NOAA Fisheries replaced its 2018 marine mammal acoustic guidance in October 2024. Hearing groups were renamed and several injury thresholds moved, so models built on the 2018 tables can report the wrong zones.
- [CBAM for Indian exporters: what to have ready before September 2027](https://www.pathcarbon.com/tn-607.html): The EU's carbon border charge has applied to imports since 1 January 2026. Your EU buyer pays it, but how much they pay depends on data only your plant can supply.
- [Noise limits in India and the IFC guidelines: which one applies](https://www.pathcarbon.com/tn-608.html): India's Noise Rules set limits by area category over a 16-hour day and an 8-hour night. IFC sets hourly limits at each receptor, plus a 3 dB cap on any rise over background. A lender-financed project in India has to pass both.

## Organisation
- [About](https://www.pathcarbon.com/about.html): disciplines, staffing, working regions
- [Project register](https://www.pathcarbon.com/work.html): project types team members have worked on (client names not published)
- [Contact](https://www.pathcarbon.com/contact.html): describe your project