Lichen air-quality bioindication survey (growth-form presence/absence) — London, UK.

Survey lichen growth forms on trees near central London as a free air-quality bioindicator. Francis Rose, co-author of the standard's own foundational 1970 lichen-zone scale, taught biogeography at King's College London here.

Offer to pay $115. The receipt lands onchain once the proof is approved.

What it looks like

A surveyor at Any site with trees / London holds a 10x hand lens to lichen on a tree trunk, then photographs each growth form with a phone camera.

A description of this kind of work, not a record that it happened here.

Where

Any site with trees / London, UK: public land collection/close approach only where permitted. Open the map

Pay

$115 proposed

This job is not funded yet, so this figure is a proposed price, not money held for the worker. If a buyer funds it, approved proof settles that price onchain. If nobody funds it, approved proof earns provable credit toward the work instead of cash: recorded, and readable any time at vealth.net/labor/credit/(your wallet). You see which before you claim, never after.

Proof

5 to 10 trees surveyed for lichen growth form + Fruticose, foliose, crustose presence photographed per tree + Substrate, tree species recorded for context + Pollution gradient noted as possibility, never determination + Confident IDs submitted to iNaturalist or a lichen project + Uncertain IDs flagged as uncertain

This is exactly what gets it approved. Nothing settles without it.

Level

entry: anyone can start here

Open until

2027-02-25

Posted by

0x034F…6c89

The creator wallet. Its signature is what approves proof and settles the wage.

This is observation and photo documentation only, and it is never represented as a calibrated air-quality index, which needs certified-lichenologist species identification. No edibility claim is made about any lichen, and a documented concern routes to public air-quality data or the local extension office.

The full safety list for this job:

• A calibrated air-quality index needs certified-lichenologist-level species identification, such as the USDA Forest Service FIA program's own annual certification standard.
• The edibility question is out of scope for this packet entirely.
• Never a substitute for checking public air-quality monitoring data or contacting the local extension or air-quality office directly, for example after an apparent lichen desert near a known emission source.
• This packet is independent of and not affiliated with King's College London or Dr. Rose: named as the real, verified institutional home of this standard's own foundational citation's co-author, not an endorsement or partnership.

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