Sentence examples for tons of dyes from inspiring English sources

Each year, as much as two hundred tons of dyes, mostly petrochemicals, are dumped into waterways, killing aquatic life and poisoning potable water sources and farmland with carcinogens and other hormone-disruptors.

In an estimate, textile dyeing effluents discharge approximately 280,000 tons of dyes worldwide every year (Jin et al. 2007).

It is estimated that over 700,000 tons of dyes and pigments are produced annually worldwide, 20% of which are utilized for textile dyeing and finishing processes [1].

More than 10,000 dyes variants are commercially available in the market and more than 0.7 million tons of dyes and color variants are produced annually across the world (Zolinger 1987; Saggioro et al. 2011; Maleki and Shahmoradi 2012; Behzad et al. 2012).

These industries across the world prefer dumping millions of tons of dye effluents into rivers, as dumping is cheaper than recycling.

It is estimated that approximately 8 × 105 tons (t) of dyes are produced annually worldwide, and about 50% of them are azo dyes[4, 5, 6, 7, 8].

Many commercially available dyes are known and approximately 1 million tons of these dyes are produced annually worldwide.

About 100,000 dyes are commercially available and more than 8 × 105 tons of these dyes are produced annually worldwide (Robinson et al. 2001).

More than 100,000 dyes are used in the textile industry and more than 700,000 tons of commercial dyes are produced annually (Lucas et al. 2007).

Maas and Chaudhari (2005) reported that 280,000 tons of textile dyes are inflow in such industrial effluents every year worldwide (Maas and Chaudhari 2005).

Hundreds of thousands of tons of organic dyes are produced annually all over the world, most of which have a complicated polyaromatic structure and are hardly decomposed by self-purification action.