Fiona's
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Containing vehicle exhaust fumes, soot, pollens, moulds, dust of various types including from industries which may be situated many miles away, volcanic dust, etc.

Wool from the angora rabbit.

Produced during building construction;
in a study in New York of 3000 autopsies half had asbestos particles in their lungs.

One of the most common airborne moulds;
common on windowsills and painted walls;
most common mould outdoors;
often involved in asthma;
worldwide distribution;
spores are particularly prevalent in Europe in June.

Found in crockery, paper and board, as a coating on fertiliser pellets, in some rubbers (both synthetic and natural) and plastics, in household paint, crayons, pencils, toothpaste and cosmetics; also known as kaolin

Produced by incinerators, forest fires, fires in the home and garden;
may travel many miles.

Some clothing and some traditional ropes.

Made from a plant grown in Asia;
used as a backing for carpets, sacks for carrying food grain, fertilisers and cement.

Made from the flax plant; the by-products of linen production are processed into a pulp used for banknotes or fibreboard.

One of the greenhouse gases;
main sources are coal mining, landfill, wetlands, poor management of manure, rice paddies and cattle.

Wool from the angora goat.

Alternaria alternata, aspergillus niger, Aspergillus fumigatus, fusarium sap., merulius lacrimans, mucor mucedo, penicillin, rhizopus nigricans, sporobolomyces, tricophytum rubrum, ustilago, cladosporium herbarum.

Vehicles and industries are the major source of ground-level ozone gas emissions; also produced by photocopiers, etc. Occurs naturally in the upper layers of the atmosphere and shields the earth from the harmful ultraviolet rays of the sun.

Includes alder, beech, silver birch, elm, hazel, plane, poplar, willow, broom, cocksfoot, dog's tail, false oat, meadow foxtail, rye, timothy, sweet vernal, ragweed, mugwort, rape, heather, fat hen, plantain, buttercup, nettle, etc.

Bent, meadow foxtail, sweet vernal grass, false oat, meadow brome, crested dog's tail, cocksfoot, meadow fescue, common velvet grass, perennial rye grass, timothy grass, annual meadow grass, alder silver birch, hazel, beech, ash, London plane, aspen, oak, white willow, short ragweed, mugwort, rapeseed, heather, fat hen, plantain, buttercup and nettle.

Lily, amarylis, dwarf sunflower, ragweed, saltbush, chrysanthemum, corn, dahlia, ash, hibiscus, tiger lily, tulip tree, apple, tobacco, rose, African violet, willow, dandelion, pine, cherry, snap dragon, cat tail.

A mixture of plastic particles (e.g. Styrene acrylate copolymer and polypropylene), iron and pigments, such as carbon black, and paraffin wax.

From mining operations, sandblasting, industrial grinding, and deserts and sand dunes, etc.

One of the main hay fever pollens in the USA from mid August to November, peaking in September; these two varieties of ragweed cause the most problems; also found in the Rhône valley in France and some areas of Eastern Europe.

Made from Chinese grass or rhea, a plant with fibrous leaves;
used mainly with other fibres as a blend in fabrics resembling linen.

A problem for many people particularly in the UK;
known as canola in North America.

A fabric made from cellulose acetate fibres;
resistant to staining and creasing.

A fabric manufactured by treating cellulose with carbon disulfide, caustic soda, and sulphuric acid; used in clothing, furnishing and carpets; the most important of the rayons

The common name for an oxide of iron; occurs when iron is exposed to water and air; a lot of water supplies are contaminated by it, especially when main pipes are being repaired.

Produced by burning fuels and volcanoes;
one of the components of acid rain;
used in include fertiliser manufacturing, ore processing, chemical synthesis, waste water processing and oil refining.