Puas yog tinsel muaj txhuas nyob hauv nws?

Cov txheej txheem:

Puas yog tinsel muaj txhuas nyob hauv nws?
Puas yog tinsel muaj txhuas nyob hauv nws?

Video: Puas yog tinsel muaj txhuas nyob hauv nws?

Video: Puas yog tinsel muaj txhuas nyob hauv nws?
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Anonim

Cov tinsel icicles ntawm ntau tsob ntoo Christmas muaj cov hmoov lead. Nws tsis yog cov hmoov txhuas dawb huv. Nws yog ib qho hlau nrog lwm cov hlau, qee zaum nrog lub ci tin txheej rau saum. Thiab ib pliag nyob ntawd, sawv daws zoo siab.

Thaum twg lawv tau tso tseg tsis siv tshuaj txhuas hauv tinsel?

Los ntawm xyoo 1960, txawm li cas los xij, kev paub txog kev pheej hmoo ntawm kev lom tshuaj lom lead ua rau qhov kawg rau cov hmoov lead-raws li tinsel. Food & Drug Administration tau pom zoo nrog tinsel importers thiab manufacturers, muab xaus rau txhuas alloy tinsel nyob rau hauv Teb Chaws Asmeskas nyob rau hauv 1972.

Yog tinsel toxic?

Raws li tau piav qhia los ntawm Tshuaj & Engineering Xov Xwm, tinsel yog tam sim no feem ntau yog ua los ntawm cov yas hu ua PVC, los yog polyvinyl chloride, thiab nws tsis yog nplaim taws lossis lom.

Christmas tinsel qub ua los ntawm dab tsi?

Yav dhau los, tinsel-uas tau txais nws lub npe los ntawm Old French lo lus estincele, lub ntsiab lus sparkle-tau ua los ntawm silver, ua rau nws pheej yig rau ob peb tug xwb. Tab sis thaum lub sij hawm tig ntawm lub xyoo pua, lwm txoj kev ua los ntawm cov hlau pheej yig dua li txhuas thiab tooj liab tau muab cov khoom kim heev zoo rau hauv kev kho kom zoo nkauj rau hnub so.

Vim li cas tib neeg tsis siv tinsel?

Lead foil yog cov khoom siv nrov rau kev tsim cov tinsel rau ntau xyoo caum ntawm lub xyoo pua 20th. Tsis zoo li nyiaj, txhuas tinsel tsis tarnish, yog li nws khaws nws ci. Txawm li cas los xij, kev siv cov hmoov txhuas tau raug txiav tawm tom qab xyoo 1960 vim muaj kev txhawj xeeb tias nws ua rau menyuam yaus muaj kev pheej hmoo ntawm cov tshuaj lom lead

Pom zoo: