Brightway Flows 1.0
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What a particle flow says

A particle flow says how much, where it went, and which particles were counted. The first two are the unit and the context. The third is the window — a pair of aerodynamic-diameter bounds in micrometres — and it is the identity: two spellings of one window are one thing, and two windows are two things however alike they are spelled.

Windows 7 in the scheme, each with its bounds
Windows carrying flows 7 reached by this build
Particle flows 117 published on one of these windows
Curated readings 233 vendor rows the size table reads, over every registered list
Carried factors 59 numbers one window took from a broader one, or a compartment from its neighbour

The scheme

Seven windows, ours. No published vocabulary carries a particle size band, so nothing here cites one; the bounds are what a reviewer checks, and a window's parent is the smallest window whose bounds contain it. Every window is always published under its Particulates spelling as well as its Particles (…) name, so a search for the ecoinvent-2 form finds it whichever vendor's rows reached it.

Window Bounds The bound is read from Also answers to Flows Rows landing here, by list Lists
Particles (unspecified size)
Airborne particles reported without any statement of the size they were selected at.
no cut stated None stated. The concept is this scheme's own: airborne particles a source reported without saying where the sample was cut. Particulates, unspecified
Particulates
1
  • agribalyse-3.2: 3
  • bafu-2026-v1: 2
  • stepwise-2006-1.09: 2
bafu algorithm addition
Particles (PM10)
Every airborne particle with an aerodynamic diameter below ten micrometres. What air-quality regulation reports, and the form most inventories carry their particulate emissions in.
below 10 µm EU Directive 2008/50/EC, Article 2(18): particulate matter which passes through a size-selective inlet with a 50 % efficiency cut-off at 10 um aerodynamic diameter; ISO 7708:1995 calls the same convention the thoracic fraction. Particulates, < 10 um 19 (+1 retired)
  • agribalyse-3.2: 6
  • bafu-2026-v1: 2
  • stepwise-2006-1.09: 3
EF 3.1, agribalyse algorithm addition
Particles (PM2.5)
Every airborne particle with an aerodynamic diameter below 2.5 micrometres -- the fine fraction, which every method in this list characterises most heavily.
below 2.5 µm EU Directive 2008/50/EC, Article 2(19): particulate matter which passes through a size-selective inlet with a 50 % efficiency cut-off at 2.5 um aerodynamic diameter; ISO 7708:1995's high-risk respirable convention. Particulates, < 2.5 um 18 (+1 retired)
  • agribalyse-3.2: 5
  • bafu-2026-v1: 5
  • ecoinvent-3.12: 5
  • ecoinvent-3.8: 5
  • stepwise-2006-1.09: 1
EF 3.1
Particles (PM0.2)
Every airborne particle with an aerodynamic diameter below 0.2 micrometres. EF 3.1's finest cut, and the only list that ships it.
below 0.2 µm By construction from the bound: the same 50 % cut-off convention as PM10 and PM2.5 at 0.2 um, EF 3.1's finest cut. No standard defines a regulated class at this size; the ultrafine convention elsewhere is 0.1 um. Particulates, < 0.2 um 18 (+1 retired) EF 3.1
Particles (PM0.2 - PM2.5)
Airborne particles with an aerodynamic diameter between 0.2 and 2.5 micrometres -- the fine fraction with the ultrafine part taken out.
0.2 – 2.5 µm By construction from the bounds: everything the PM2.5 inlet passes that a 0.2 um inlet would not. A band no standard or vocabulary names. Particulates, > 0.2 um, and < 2.5 um 18 (+1 retired)
  • agribalyse-3.2: 1
EF 3.1
Particles (PM2.5 - PM10)
Airborne particles with an aerodynamic diameter between 2.5 and ten micrometres -- the coarse fraction.
2.5 – 10 µm By construction from the bounds: everything the PM10 inlet passes that the PM2.5 inlet would not -- the coarse fraction of air-quality usage, which no standard defines as a class of its own. Particulates, > 2.5 um, and < 10um 18 (+1 retired)
  • agribalyse-3.2: 4
  • bafu-2026-v1: 4
  • ecoinvent-3.12: 4
  • ecoinvent-3.8: 5
EF 3.1
Particles (> PM10)
Airborne particles with an aerodynamic diameter above ten micrometres -- too coarse to be respirable, and uncharacterised by every method in this list.
above 10 µm By construction from the bound: what a PM10 inlet does not pass. Named by ecoinvent 2 and EF 3.1, defined by neither. Particulates, > 10 um 19 (+1 retired)
  • agribalyse-3.2: 8
  • bafu-2026-v1: 4
  • ecoinvent-3.12: 4
  • ecoinvent-3.8: 5
EF 3.1, agribalyse algorithm addition

A second axis, which is not a size: 2 rows read under mobile, 1 row read under process, 3 rows read under stationary. What emitted the particles is recorded and the row lands on the unqualified window, because the only method that distinguishes them gives all of them the same number.

What each method says, and what this list carries

Per window, the consensus implementation's factors in the particulate categories: how many are published, how many of those were carried rather than stated, and the number in unspecified air. A window nobody characterises takes its nearest broader window's stated number inside the compartment — the coarse band takes PM10's, the ultrafine cut takes PM2.5's, the above-ten fraction takes the size-unstated total's — and the compartment convention then spreads it into the outdoor strata. Under EF 3.1 nothing characterises the total or anything above it, so particles above ten micrometres stay blank there.

Window Method · category Published Carried In unspecified air
Particles (unspecified size) Stepwise · Respiratory inorganics 1 0 0.157142857 (sole)
Particles (PM10) EF · EF-particulate Matter 11 0 5.48544e-05 (sole)
Stepwise · Respiratory inorganics 9 8 0.535714286 (sole)
Particles (PM2.5) EF · EF-particulate Matter 11 0 0.000238497 (agreed)
Stepwise · Respiratory inorganics 9 8 1.0 (sole)
Particles (PM0.2) EF · EF-particulate Matter 11 0 0.000238497 (sole)
Stepwise · Respiratory inorganics 9 9 1.0 (carried)
Particles (PM0.2 - PM2.5) EF · EF-particulate Matter 11 0 0.000238497 (sole)
Stepwise · Respiratory inorganics 9 9 1.0 (carried)
Particles (PM2.5 - PM10) EF · EF-particulate Matter 11 7 5.48544e-05 (ruled)
Stepwise · Respiratory inorganics 9 9 0.535714286 (carried)
Particles (> PM10) Stepwise · Respiratory inorganics 9 9 0.157142857 (carried)

Rows the merge would refuse

None. Every source row of this build named as a particle size cut has a reading in the size table, which is what a finished build guarantees: a row without one stops the merge rather than minting a substance.

The flows

Every flow published on one of these windows.

Reset

117 of 117 flows.

Flow Window Context Unit List Factors
Particles (> PM10) Particles (> PM10) Environmental → Air → Aircraft cruise height kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Air → Ground level → Rural (<1000 people/square mile) kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Air → Ground level → Urban (>1000 people/square mile) kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Air → High stack, >150 meters → Rural (<1000 people/square mile) kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Air → High stack, >150 meters → Urban (>1000 people/square mile) kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Air → Long-term kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Air → Low stack, <25 meters → Rural (<1000 people/square mile) kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Air → Low stack, <25 meters → Urban (>1000 people/square mile) kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Air → Medium stack, <150 meters → Urban (>1000 people/square mile) kg EF 3.1 0
Particles (> PM10) retired Particles (> PM10) Environmental → Air → Medium stack, <150 meters → Urban (>1000 people/square mile) kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Air → Unknown kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Ground → Agricultural kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Ground → Non-agricultural kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Ground → Unknown kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Water → Long-term kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Water → Ocean kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Water → Surface water kg EF 3.1 0
Particles (> PM10) Particles (> PM10) Environmental → Water → Unconfined aquifer kg agribalyse algorithm addition 0
Particles (> PM10) Particles (> PM10) Environmental → Water → Unknown kg EF 3.1 0
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Air → Aircraft cruise height kg EF 3.1 0
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Air → Ground level → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Air → Ground level → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Air → High stack, >150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Air → High stack, >150 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Air → Long-term kg EF 3.1 1
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Air → Low stack, <25 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Air → Low stack, <25 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM0.2 - PM2.5) retired Particles (PM0.2 - PM2.5) Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Air → Medium stack, <150 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Air → Unknown kg EF 3.1 1
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Ground → Agricultural kg EF 3.1 0
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Ground → Non-agricultural kg EF 3.1 0
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Ground → Unknown kg EF 3.1 0
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Water → Long-term kg EF 3.1 0
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Water → Ocean kg EF 3.1 0
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Water → Surface water kg EF 3.1 0
Particles (PM0.2 - PM2.5) Particles (PM0.2 - PM2.5) Environmental → Water → Unknown kg EF 3.1 0
Particles (PM0.2) Particles (PM0.2) Environmental → Air → Aircraft cruise height kg EF 3.1 0
Particles (PM0.2) Particles (PM0.2) Environmental → Air → Ground level → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM0.2) Particles (PM0.2) Environmental → Air → Ground level → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM0.2) Particles (PM0.2) Environmental → Air → High stack, >150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM0.2) Particles (PM0.2) Environmental → Air → High stack, >150 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM0.2) Particles (PM0.2) Environmental → Air → Long-term kg EF 3.1 1
Particles (PM0.2) Particles (PM0.2) Environmental → Air → Low stack, <25 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM0.2) Particles (PM0.2) Environmental → Air → Low stack, <25 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM0.2) Particles (PM0.2) Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM0.2) retired Particles (PM0.2) Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM0.2) Particles (PM0.2) Environmental → Air → Medium stack, <150 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM0.2) Particles (PM0.2) Environmental → Air → Unknown kg EF 3.1 1
Particles (PM0.2) Particles (PM0.2) Environmental → Ground → Agricultural kg EF 3.1 0
Particles (PM0.2) Particles (PM0.2) Environmental → Ground → Non-agricultural kg EF 3.1 0
Particles (PM0.2) Particles (PM0.2) Environmental → Ground → Unknown kg EF 3.1 0
Particles (PM0.2) Particles (PM0.2) Environmental → Water → Long-term kg EF 3.1 0
Particles (PM0.2) Particles (PM0.2) Environmental → Water → Ocean kg EF 3.1 0
Particles (PM0.2) Particles (PM0.2) Environmental → Water → Surface water kg EF 3.1 0
Particles (PM0.2) Particles (PM0.2) Environmental → Water → Unknown kg EF 3.1 0
Particles (PM10) Particles (PM10) Environmental → Air → Aircraft cruise height kg EF 3.1 0
Particles (PM10) Particles (PM10) Environmental → Air → Ground level → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM10) Particles (PM10) Environmental → Air → Ground level → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM10) Particles (PM10) Environmental → Air → High stack, >150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM10) Particles (PM10) Environmental → Air → High stack, >150 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM10) Particles (PM10) Environmental → Air → Long-term kg EF 3.1 1
Particles (PM10) Particles (PM10) Environmental → Air → Low stack, <25 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM10) Particles (PM10) Environmental → Air → Low stack, <25 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM10) Particles (PM10) Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM10) retired Particles (PM10) Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM10) Particles (PM10) Environmental → Air → Medium stack, <150 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM10) Particles (PM10) Environmental → Air → Unknown kg EF 3.1 1
Particles (PM10) Particles (PM10) Environmental → Ground → Agricultural kg EF 3.1 0
Particles (PM10) Particles (PM10) Environmental → Ground → Non-agricultural kg EF 3.1 0
Particles (PM10) Particles (PM10) Environmental → Ground → Unknown kg EF 3.1 0
Particles (PM10) Particles (PM10) Environmental → Water → Long-term kg EF 3.1 0
Particles (PM10) Particles (PM10) Environmental → Water → Ocean kg EF 3.1 0
Particles (PM10) Particles (PM10) Environmental → Water → Surface water kg EF 3.1 0
Particles (PM10) Particles (PM10) Environmental → Water → Unconfined aquifer kg agribalyse algorithm addition 0
Particles (PM10) Particles (PM10) Environmental → Water → Unknown kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Air → Aircraft cruise height kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Air → Ground level → Rural (<1000 people/square mile) kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Air → Ground level → Urban (>1000 people/square mile) kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Air → High stack, >150 meters → Rural (<1000 people/square mile) kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Air → High stack, >150 meters → Urban (>1000 people/square mile) kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Air → Long-term kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Air → Low stack, <25 meters → Rural (<1000 people/square mile) kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Air → Low stack, <25 meters → Urban (>1000 people/square mile) kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) kg EF 3.1 0
Particles (PM2.5 - PM10) retired Particles (PM2.5 - PM10) Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Air → Medium stack, <150 meters → Urban (>1000 people/square mile) kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Air → Unknown kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Ground → Agricultural kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Ground → Non-agricultural kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Ground → Unknown kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Water → Long-term kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Water → Ocean kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Water → Surface water kg EF 3.1 0
Particles (PM2.5 - PM10) Particles (PM2.5 - PM10) Environmental → Water → Unknown kg EF 3.1 0
Particles (PM2.5) Particles (PM2.5) Environmental → Air → Aircraft cruise height kg EF 3.1 0
Particles (PM2.5) Particles (PM2.5) Environmental → Air → Ground level → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM2.5) Particles (PM2.5) Environmental → Air → Ground level → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM2.5) Particles (PM2.5) Environmental → Air → High stack, >150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM2.5) Particles (PM2.5) Environmental → Air → High stack, >150 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM2.5) Particles (PM2.5) Environmental → Air → Long-term kg EF 3.1 1
Particles (PM2.5) Particles (PM2.5) Environmental → Air → Low stack, <25 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM2.5) Particles (PM2.5) Environmental → Air → Low stack, <25 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM2.5) Particles (PM2.5) Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM2.5) retired Particles (PM2.5) Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) kg EF 3.1 1
Particles (PM2.5) Particles (PM2.5) Environmental → Air → Medium stack, <150 meters → Urban (>1000 people/square mile) kg EF 3.1 1
Particles (PM2.5) Particles (PM2.5) Environmental → Air → Unknown kg EF 3.1 1
Particles (PM2.5) Particles (PM2.5) Environmental → Ground → Agricultural kg EF 3.1 0
Particles (PM2.5) Particles (PM2.5) Environmental → Ground → Non-agricultural kg EF 3.1 0
Particles (PM2.5) Particles (PM2.5) Environmental → Ground → Unknown kg EF 3.1 0
Particles (PM2.5) Particles (PM2.5) Environmental → Water → Long-term kg EF 3.1 0
Particles (PM2.5) Particles (PM2.5) Environmental → Water → Ocean kg EF 3.1 0
Particles (PM2.5) Particles (PM2.5) Environmental → Water → Surface water kg EF 3.1 0
Particles (PM2.5) Particles (PM2.5) Environmental → Water → Unknown kg EF 3.1 0
Particles (unspecified size) Particles (unspecified size) Environmental → Air → Unknown kg bafu algorithm addition 0

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