应用化学专业英语论文

Alert life chemical carcinogens

Key words: cancer, additives, smoking, cosmetics, prevention

Chemistry is a natural science foundation of human development

is of great significance to life,

also to have the very big relations. As is known to all, we all the things around them are made by

many chemical elements, including our human indispensable many elements. According to some

chemical

knowledge

and

phenomenon can

also

help

people

to

do

some common

useful

things.

Food,

clothing,

shelter,

transportation,

use,

chemical

omnipresent.

With

the

development

of

productive

forces,

the

progress

of science

and

technology, chemical

and

people's

life

more

and

more closely related. Chemistry in the human production and life played an inestimable role. Any

affairs, however, every coin has two sides, in bring us convenient, but also bring us some potential

hazard. All kinds of chemical pollution, industrial waste water waste smoke not only give nature

cause

environmental

pollution,

but

also

harmful

to

the

health

of

the

human

body,

and

some

is

through our common to eat or drink and cause of the human body damage, one of the biggest than

some carcinogenic chemical substances, and these have we can avoid. Here is the most common

said concentration

As the saying goes

most basic eat will affect the human body health, according to the survey, in our country in cancer

patients, about 35% - 50% is happening and diet, food processing related, and so on, this is mainly

due to the food of all kinds of food additives cause.

In

nowadays,

additive

are

some

improve

food

quality,

extend

the

shelf

life

of

food,

is

advantageous

for

the

food

processing

and

increase

food

nutrition

composition

of

chemical

synthesis

or

natural

material.

For

example,

acidity

regulator,

HuSeJi,

enzyme

preparation,

flavoring

agent,

anticaking

agent,

antifoaming

agent,

antioxidant,

bleach,

raising

agent,

preservatives, sweeteners, thickening agent, spices, etc., for example, once used as artificial cream

coloured

yellow

etc.,

and

it

is these

all

manner

of

various

additives,

give

us

the

body

cause many potential harm, of course, if in strict accordance with the various national standards

apply to add some, the problem is not big, but unluckily so some illegal businessmen, venality, not

the

consumer

safety,

disorderly

to

add

some

additives,

leading

to

many

consumers

don't

understand body hurt. One of the biggest is an incident recently

In

the

event

it

was

household

SanLu

company,

although

this

is

not

carcinogenic,

but

the

consequences of the same so serious, have a few years ago

chemical dyeing agent, and the mercenary businessmen know cheating a manic consumers, illegal

food

additives

in

the

content,

the

researchers found

that they can cause

human

liver

cell

DNA

mutation,

have

certain

carcinogenic

properties,

although

and

proved

in

organisms,

not

quickly

lead

to

illness.

Come

into

contact with

the

material

also

can

cause

cancer

does

not

mean

that

cancer

will

happen,

but

it

is

dangerous.

Now

almost

on

the

shelf

put

all

kinds

of

affairs,

no

additive. Eating the flavor of the ham, instant noodles, etc., still think that delicious, what does not

know

is

the

usual

we

love

to

eat,

sleep

more

than

home

the

don't

know

how

much

delicious

food,

snacks

is

the

including

add

most,

preservative,

condiment,

etc.,

especially

the

preservative and hair color agent of nitrate, very easy to become a strong to intestines and stomach

cancer

nitrosamines,

also

recently

international

food

and

agricultural

organization

and

health

organization

recommended

efficiency

and

security

of

anticorrosive

antistaling

agent sorbic

acid,

widely

used

in

widely

used

in

the

food,

beverage,

tobacco,

chemicals,

cosmetics

and

other

industries,

although

is

considered

to

be

a

kind

of

good

antiseptic,

but

once

the

food

additives

sorbic acid overweight serious, consumer long-term use, to a certain extent body harm the health

of the kidney, liver, and the same distortion, cancerous.

Of course

as

long

as

all

kinds

of

additives

are strictly

in

accordance with

the

relevant

national

gauge of the standard of right amount to add, all kinds of food or safe, but in life we should eat

less as far as possible some obvious will add a lot of food additives.

Another

kind

of

carcinogenic

hidden

trouble

things,

is

also common, that

is, cigarettes,

a

large

number of studies have shown that smokers lung cancer than ordinary people high twenty ~ 25

times,

and

the

amount

of

smoking

and

smoking

the

length

of

time

the

positive

correlation.

Smoking has hundreds of years of history, smoking not only harm your body, and at the same time,

thus causing injury to another person, the dangers of smoking is a well known fact that

foreign

psychological research institutions to a research results show that smokers intelligence efficiency

than smokers by 10.6%. Different cigarette ignited the release of chemicals are different, but the

number of main chemical material such as tar and carbon monoxide. Cigarette lit produce harmful

substances can be divided into six categories:

(1) aldehydes, nitride, olefin, these substances may stimulate to the respiratory tract.

(2) the nicotine class, can stimulate the sympathetic nerve, make smokers form depend on.

(3) amine, cyanide and heavy metals, these all belong to the poisonous substance.

(4) carbon monoxide can reduce red blood cells will oxygen throughout the body to ability

(5)

phenolic

compounds

and

formaldehyde,

etc.,

these

substances

have

accelerated

the

role

of

canceration.

(6)

styrene-acrylic

pyrene,

arsenic,

cadmium,

methyl

hydrazine,

aminophenol

and

other

radioactive substances.

These substances are carcinogenesis. Said to cigarettes cancer have to say its important ingredients:

nicotine, nicotine is a kind of nerve toxin, main infringer of the nervous system. Some smokers in

subjective

feeling

smoking

can

relieve

fatigue,

brace

yourself,

this

is

the

nervous

system

of

a

sexual excitement, is actually caused by the nicotine exciting. After the excitement of the nervous

system immediately appear inhibition. So, after smoking neuromuscular response sensitivity and