CHONGQING, the Yangtze River city that Americans may know as Chungking, is a naturally foggy place. It also suffers some of the worst pollution in all China, which puts it among the strong candidates for most polluted city in the world. When the fog and the pollution are both at their thickest, locals say, "if you stretch your hand out in front of your face, you cannot see your fingers."
Visibility was somewhat better than that when I visited Chongqing one morning recently. Perched high above the Jialin River, which also flows through the city, I peered into the dank grayness before me. I could dimly make out a black-and-white tugboat hugging the far shore of the river and, beyond that, the outlines of what might be office buildings. This was the view from the back of the Chongqing Paper Factory, a massive state-owned facility that local environmental officials had singled out as evidence of how well they were cleaning up Chongqing. Built in the 1940s, the factory had been for a long time a terrible polluter, discharging enough chlorine and other toxic chemicals into the Jialin "to cover the entire river with white foam," according to a top official of the Chongqing Environmental Protection Bureau who must remain nameless. Now, however, the official bragged in an interview, the factory had been all but shut down. "Our strategy has been to press them to death!" he said.
At the factory, though, it didn't look that way. The official discouraged me from trying to visit ("I myself would have to seek permission to enter," he said scoldingly), but Zhenbing, my interpreter, and I found the front gate open when we arrived, and since no one stopped us, we simply walked in. At the back of the plant a set of concrete steps led down to the Jialin River, perhaps eighty yards below. Halfway down Zhenbing and I cut left across the exposed riverbank, our shoes leaving clear prints on the dark, sandy soil.
Within seconds we saw a broad stream of bubbling water cascading out the back of the plant and down the hillside. The astringent odor of chlorine attacked our nostrils, and once we reached the stream's edge, the smell was so powerful that we immediately backed away. Below us, where the discharge emptied into the Jialin, a frothy white plume was spreading across the slow-moving river.
Fifty yards farther on we encountered a second stream, this one a mere foot wide but clogged with pineapple-sized clumps of dried orange foam. Beyond was a third creek. Its stench identified it as household sewage (workers in China's state-owned factories generally live on site or nearby), but its most extraordinary feature was its color -- as black as used motor oil. Not ten yards away a grizzled peasant in a dark-blue Mao jacket and trousers (an outfit still worn in China by the poor) bent over a tiny vegetable patch to pick some greens for his midday meal.
All this was dwarfed by what lay ahead. The vapor was what we saw first -- wispy white, it hung low in the air, like tear gas. Stepping closer, we heard the sound of gushing water. Not until we were merely footsteps away, however, could we see the source of the commotion: a vast, roaring torrent of white, easily thirty yards wide, splashing down the hillside like a waterfall of boiling milk.
Again the scent of chlorine was unmistakable, but this waterfall was much whiter than the first. Decades of unhindered discharge had left the rocks coated with a creamlike residue, creating a perversely beautiful white-on-white effect. Above us the waterfall had bent trees sideways; below, it split into five channels before pouring into the unfortunate Jialin. All this and yet the factory, as one worker had informed us, was operating at about 25 percent of capacity.
Hoping to leave the factory grounds by another exit, Zhenbing and I were trudging up a service road when a man wearing the olive-green greatcoat of the Chinese military came running directly at us. It seemed that our unauthorized factory tour might end badly after all. But no. Military greatcoats turn out to be a bit like Mao jackets in China these days: lots of people wear them, because they are cheap and functional. In any case, this man had different worries. Liquid was spilling from two large, loosely connected hoses by the side of the road, one leading back up to the factory and the other stretching down to the river. The man barked orders at two workers straddling the hoses, and they stepped back. Then, without a word of warning to Zhenbing and me -- though we were standing only five feet away -- he knelt and tightened the connection between the hoses.
Instantly he was engulfed in an explosion of gas. But he was ready for it, and in one fluid motion he straightened and started sprinting back along the road, vanishing behind the billowing cloud of chlorine after two steps. Zhenbing and I were not ready for it, but forward was the only way out, so we held our breath and plunged after him. Six running strides brought us past the worst of it, but even then we were surrounded by huge puffs of gas, which started us coughing fiercely.
Thirty yards up the road we were still sputtering when we passed three dump trucks parked against the factory wall. A dozen workers were lounging in the backs of the trucks. The man in the greatcoat, who had run all the way here, was bending down to tie his shoe. Chlorine is the chemical that was used to kill soldiers in the poison-gas attacks of the First World War, but the men in the trucks showed no concern about the vapors floating past their heads. They only elbowed one another and stared at the foreigner trudging past their factory -- evidently a far more unusual sight.